கலைச்சொல் பேரகராதி,
தொகுதி 14,
வானியல்
(ஆங்கிலம் - தமிழ்)
அகராதி | பழமொழி | விடுகதை | நூல் | திரைப்படம் | இதழ்
| a piscis australis | a-ok |
| a-type rocket (russian name: r-7 rocket) | abell richness classes |
| aberration | ablation |
| ablation shield | ablative cooling |
| ablative shielding | abort |
| abort sensing and implementation system (asis) | absarokite |
| absolute magnitude | absorber |
| acceleration, secular | accretion |
| accretion disc | accretion hypothesis |
| accretion theory | accretionary lava ball |
| achondrite | acquarius |
| acquisition of signal (aos) | active galaxy |
| active microwave instrument (ami) | active prominence |
| active prominence region | active satellite |
| active solar system | active sun |
| adalert | advanced along-track scanning radiometer (aastsr) |
| advanced communications technology satellite (acts) | advanced composition explorer (ace) |
| advanced earth-observing satellite (adeos) | advanced land observing satellite |
| advanced life-support program | advanced microwave sounder unit (amsu) |
| advanced multi-mission operations system (ammos) | advanced radio interferometry between space and earth (arise) |
| advanced radioisotope power system (arps) | advanced research in telecommunications systems (artes) |
| advanced satellite for cosmology and astrophysics (asca) | advanced synthetic aperture radar (asar) |
| advanced very high-resolution radiometer (avhrr) | aerial transportation |
| aero | aero ballistics |
| aerobee rocket | aerobraking (or aerodynamic braking) |
| aerodynamic drag | aerodynamic trajectory |
| aerodynamic vehicle | aerolite |
| aerolithic | aerolithology |
| aeromotor (aero) | aeronaut |
| aeronautics | aeroshell |
| aerospace directing and controlling centre | aerospace electronics |
| aerospace engineering | aerospace environment |
| aerospace ground equipment | aerospace industry |
| aerospace vehicle | aerospike |
| agamemnon | agena rocket |
| agenzia spaziale italiana (asi; english: italian space agency) | aimpoint |
| air-sampling system | airlock |
| albedo | albedometer |
| alcohol | alh 84001 |
| all-sky monitor (asm) | along- track scanning radiometer (atsr) |
| alouette | alpha proton x-ray spectrometer (apxs) |
| altazimuth | altazimuth mounting |
| altazimuth telescope | altimetry |
| altitude | aluminium |
| american astronautical society (aas) | american institute of aeronautics and astronautics (aiaa) |
| ames research center | analyser of space plasma and energetic atoms (aspera) |
| anik | announcement of opportunity (ao) |
| anoaly | ansae |
| ansari x prize | anthelic arc |
| anthelion | anti-g garment |
| antisuffocation valve | aphelion |
| apoapsis | apogean tidal currents |
| apogean tides | apogee |
| apollo asteroid | apollo lunar surface |
| apollo project | apollo telescope mount (atm) |
| apollo-soyuz test project (astp) | apolune (or apselene) |
| applications technology satellite (ats) | applied space technology and microgravity |
| appulse | apse |
| apsidal angle | apsidal distance |
| apsidal line | apsidal motion |
| apsis (plural : apsides) | aqua |
| aquila | ara |
| arabsat | arc minute (symbol) |
| argument | ariane rocket |
| arianespace | ariel |
| army ballistic missile agency (abma) | artemis |
| aryabhata | asiasat 3 (later hgs-1) |
| aspect | assembly |
| assembly, test, and launch operations (atlo) | association of specialist technical organizations for space (astos) |
| asteroid | astrionics |
| astro | astro observatory |
| astro-f | astroballistics |
| astrobiology | astrobleme |
| astrochemistry | astrochronology |
| astrocompass | astrodome |
| astrodynamics | astrogeology |
| astrogeology | astrograph |
| astroid | astroite |
| astrolab | astrolabe |
| astrometric position | astrometry |
| astron accelerator | astronaut |
| astronaut hall of fame | astronaut life-support assembly (alsa) |
| astronaut manoeuvring unit (amu) | astronaut wing |
| astronautical engineering | astronautics |
| astronavigation | astronomical |
| astronomical almanac | astronomical atlas |
| astronomical azimuth | astronomical camera |
| astronomical catalogue | astronomical constants |
| astronomical coordinate system | astronomical date |
| astronomical day | astronomical distance |
| astronomical equator | astronomical instruments |
| astronomical map | astronomical mean sun |
| astronomical meridian | astronomical netherlands satellite (ans) |
| astronomical notation | astronomical observatory |
| astronomical photography | astronomical position |
| astronomical refraction | astronomical scintillation |
| astronomical spectrograph | astronomical spectroscopy |
| astronomical surveying | astronomical telescope |
| astronomical theodolite | astronomical tide |
| astronomical time | astronomical triangle |
| astronomical twilight | astronomical unit (au) |
| astronomy | astrophysics |
| astrophysics data facility (adf) | astrosat |
| astrotracker | athena rocket |
| athodyd | athwartship |
| atlantis | atlas rocket |
| atmospheric braking | atmospheric entry probe |
| atmospheric laboratory for applications and science (atlas) | atmospheric revitalization rack |
| atmospheric structure instrument/meteorology package | attitude control |
| attitude gyro | attitude jet |
| augustine advisory committee | aura |
| aurora | aurora australis |
| aurora borealis | aurora gating |
| auroral | auroral absorption event |
| aussat | auto |
| autogenic-feedback training exercise (afte) | automated transfer vehicle (atv) |
| automatic interplanetary station | automatic picture transmission (apt) |
| auxiliary power unit (apu) | avco corporation |
| averaging pitot tube | aviation |
| aviation astronomy | aviation gasoline |
| aviation mix | aviation weather forecast |
| aviation weather observation | avionics |
| axis of revolution | axis of rotation |
| axis of sighting | axis of symmetry |
| axis of tilt | azimino |
| azimuth | azimuth alignment |
| azimuth angle (survey) | azimuth bar |
| azimuth blanking | azimuth circle |
| azimuth compass | azimuth dial |
| azimuth equation | azimuth error |
| azimuth gain reduction | azimuth indicator |
| azimuth instrument | azimuth line |
| azimuth marker | azimuth rate |
| azimuthal (adj) | azimuthal chart |
| azimuthal equidistant chart | azimuthal error |
| azimuthal map projection | azimuthal plane |
| b star | b tauri |
| b-type rocket | babakin science and research centre |
| babcock magnetograph | baikonur cosmodrome (or baykonur cosmodrome) |
| ballistic descent | ballistic trajectory |
| balloon | balloon astronomy |
| bamberga | bardeen-cooper-schrieffer theory |
| barium star | barred spiral galaxy |
| barringer crater (or arizona mete or crater or coon butte) | bary centre |
| barycentric orbit | baryon to photon ratio |
| beacon | beagle 2 |
| becklin-nengebaur object | belka and strelka |
| bell aerosystems | bell bomi |
| bellatrix | bends (or compressed-air sickness or caisson disease) |
| bepicolombo | bepposax |
| berthing | besselian elements |
| besselian star numbers | beta cloth |
| biela comet | big bang |
| big crunch | big dipper |
| big four | binary pulson |
| binary star | biological isolation garment (big) |
| biomedical monitoring sensor | bioregenerative planetary life-support systems test complex (bio-plex) |
| biosatellite cosmos | bipropellant |
| bl lacerate objects | blaauw mechanism |
| black arrow rocket | black drop |
| black dwark | black hole |
| blast-off | blue band |
| blue edge | blue haze |
| blue shift | blue stragglers |
| bode’s law | body flap |
| boeing company | boilerplate |
| boiling | bolide |
| bolometric correction | bolometric magnitude |
| boom | booster |
| bootes | bow shock crossing |
| bowl crater | bradley aberration |
| braking ellipses | braking rocket |
| brasilsat | bright points |
| bright rim structures | bright stars catalog |
| brilliance | british association of remote- sensing companies (barsc) |
| british interplanetary society (bis) | british national space centre (bnsc) |
| brown dwarf | built-in hold |
| bump cepheid | buran (russian : snowstorm) |
| burn | burnout |
| burp firing | burr |
| buzz | c-type rocket (russian name : cosmos 1 rocket) |
| cabin | caelum |
| calendar | calendar day |
| calendar month | calendar year |
| california institute of technology (or caltech) | callipic cycle |
| callisto | caloris basin |
| calypso | camelopardalis |
| camilla | canadarm (or remote manipulator system (rms)) |
| canadian space agency (csa) | cancer |
| canes venatici | canis major |
| canis minor | canonical change |
| canonical time unit | canopus |
| capella | capricornus |
| capsule | capsule communicator (capcom) |
| captured rotation (or synchronous rotation) | carbon cycle |
| carbon dioxide removal system | carbon sequence |
| carbon star | carbon-carbon |
| carbon-detonation supernova model | carbon-fibre reinforced plastic (cfrp) |
| cargo | cargo bay (or payload bay) |
| carina | carina nebula |
| carme | carrington rotation number |
| cartwheel | cassini’s division |
| castor (a star in the gemini constellation) | cataclysmic variable |
| catalog number | caterlet |
| cd galaxy | celestial body |
| celestial coordinates | celestial equator |
| celestial globe | celestial horizon |
| celestial latitude | celestial longitude |
| celestial mechanics | celestial meridian |
| celestial pole | celestial sphere |
| centaurus | centaurus a |
| centaurus cluster | central condensation |
| central eclipse | central meridian |
| central peak | central-meridian transit |
| centre for earth observation (ceo) | centre national d’etudes spatiales (cnes; national centre for space studies) |
| centre spatial guyanais (csg; guianese space centre) | centrifugal force |
| centrifuge | centripetal force |
| cepheid | cepheus |
| ceres | cetus |
| challenger | challenger centre (in full : challenger center for space science education) |
| chamaeleon | chamber pressure |
| chandra x-ray observatory (cxo) | chandrasekhar limit |
| chandrasekhar-schonberg limit | chandrayaan-1 |
| channelization | charge-coupled device (ccd) |
| charon | checkout |
| cheng zen rocket (cz) | chest pack |
| chibis vacuum suit | china 1 (or mao 1) |
| chinastar 1 (or zhongwei 1) | chiron |
| chondrite | chondrule |
| chromosphere | chryse planitia (or plains of gold) |
| circinus | circle of latitude |
| circle of longitude | circle of perpetual apparition |
| circle of perpetual occultation | circular orbit |
| circularization | circulating current |
| circumlunar | circumpolar |
| circumpolar star | circumstellar disk |
| cislunar | cislunar space |
| civil day | civil time |
| civil twilight | clarke orbit |
| classical t tauri star | clean room |
| clementine | clevis |
| clock star | closed universe |
| closest approach | closure parameter |
| cloudsat | cluster |
| cno cycle- carbon-nitrogen- oxygen cycle | coalsack |
| coast period | coastal zone colour scanner (czcs) |
| cobe | cockpit |
| cold dark matter | cold-ion detector (cid) |
| collimation error | color equation |
| color excess | color-color diagram |
| color-magnitude diagram | columba |
| columbia | columbus |
| colure | coma |
| coma berences | coma cluster |
| combination spectrum | combustion |
| combustion chamber | combustion instability |
| comes | comet |
| comet family | comet group |
| comet nucleus tour (contour) | cometary kilometric radiation |
| cometary nebula | command and service module (csm) |
| command module (cm) | command sequence |
| command system (cmd) | command-loss timer (clt) |
| commander (cdr) | commensurable motions |
| commensurate orbits | committee on earth |
| committee on space research (cospar) | committee on the peaceful |
| common year | communications carrier assembly (or snoopy helmet) |
| communications satellite | communications satellite corporation (comsat) |
| compact h ii region | compact radio source |
| comparison star | complex 14 |
| complex 39 | compton gamma-ray observatory |
| compton-getting effect | comptonization |
| comstock refraction formula | concentric ring structures |
| conestoga rocket | configuration control board |
| conjunction | consanguineous structures |
| constant of aberration | constellation |
| constellation-x | constituent day |
| consumable | contact binary |
| contaminant control cartridge | contiguous arc |
| contiguous chain | contiguous craters |
| control moment gyroscope | control-stick steering (css) |
| controlled crash | convective zone |
| convolutional coding | cool star |
| coordinated universal time | copernican principle |
| copernican system | copernicus (or orbiting astronomical observatory) |
| cordelia | core segment |
| cornerstone | corona |
| corona australis | corona borealis |
| coronagraph | coronal green line |
| coronal hole | coronas (or complex orbital near-earth observations of the solar activity) |
| corot | corvus |
| cos-b | cosmic |
| cosmic abundance | cosmic background explorer |
| cosmic background radiation | cosmic censorship hypothesis |
| cosmic dust | cosmic electrodynamics |
| cosmic expansion | cosmic light |
| cosmic microwave background polarization | cosmic microwave radiation |
| cosmic radiation | cosmic radio waves |
| cosmic string | cosmic year |
| cosmic-dust analyzer | cosmic-ray subsystem (crs) |
| cosmochemistry | cosmodrome |
| cosmogeny | cosmogony (greek: cosmos ‘universe’ and gonia ‘creation’) |
| cosmological | cosmological principle |
| cosmology | cosmonaut |
| cosmonautics | cosmos |
| cospar | cotidal hour |
| council for the central laboratory of the research councils (cclrc) | count rate |
| countdown | course correction |
| crab nebula | crab pulsar |
| crater | crater arc |
| crater chain | crater pit |
| crawler-transporter | crepuscular rays |
| crescent | crescent phase |
| cressida | crew altitude protection system (caps) |
| crew altitude protection system (caps) | crew patch |
| crew return vehicle (crv) | crew station |
| crewman optical alignment sight (coas) | critical density |
| critical equatorial velocity | crossrange |
| cruise phase | crustal dynamics project (cdp) |
| crux | cryogenic |
| culmination | curtate distance |
| curvature correction | curve of growth |
| cusp cap | cut-off |
| cybele | cygnus |
| cynosure | d galaxy |
| d-type rocket | daedalus |
| dark cloud | dark matter |
| dark nebula | dark of the moon |
| dark star | dark-eclipsing variables |
| darwin | darwin ellipsoid |
| data relay and technology mission (drtm) | data relay satellite (drs) |
| data systems operations team (dsot) | davida |
| dawn | dawn side |
| day | dayglow |
| daylight | daylight saving meridian |
| daylight saving noon | daylight saving time |
| db galaxy | decay |
| december solstice | deck |
| declination | decontamination |
| decremental arc | decremental chain |
| deep impact probe | deep space |
| deep-space communication complex (dscc) | deep-space mission system (dsms) |
| deep-space network (dsn) | deep-space station (dss) |
| defense advance research project agency (darpa) | defense, department of (dod) |
| deferent | deimos |
| delphinus | delta (v) |
| delta cephei | delta rocket |
| delta scuti stars | dembowska |
| demonstration test facility (dtf) | deneb |
| denebola | density oscillation theory |
| deorbit | department of trade and industry (dti) |
| deployment | desat |
| descriptive astronomy | desdemona |
| despoina | despun |
| destiny | diamond-ring effect |
| dichotomy | differenced doppler |
| differential correction | diffuse galactic light |
| diffuse nebula | diffuse sky radiation |
| dione | dipole anisotropy |
| direct ascent mode | direct control |
| direct solar radiation | direct-broadcast satellite (dbs) |
| direct-sensing instrument | dirty ice |
| dirty snowball model | discoverer |
| discovery | discovery program |
| discrete radio source | disk |
| dispersion | dispersion measure |
| display and control module | distance-luminostity relation |
| disturbed-sun noise | diurnal aberration |
| diurnal arc | diurnal circle |
| diurnal motion | division circle |
| docking | docking module (dm) |
| donatello | doppler effect |
| doppler radar | dorado |
| dosimeter | double cluster |
| double star | douglas aircraft company |
| downlink | downrange |
| draco | draco system |
| draconids | drag |
| drake equation | draper catalog |
| drift | drogue parachute |
| drop tower | dry weight (or empty weight) |
| dryden flight research center | dumbbell nebula |
| dusk | dusk side |
| dust detector (or dust counter) | dust tail |
| dwarf cepheids | dwarf galaxy |
| dwarf novae | dwarf spheroidal galaxy |
| dwarf star | dyna-soar (or x-20) |
| dynamic parallax | dynamic pressure |
| dynamical halo model | e corona |
| e-layer (formerly kennelly- heaviside layer) | eagle |
| eagle nebule | early apollo scientific |
| early bird (or intelsat 1) | early type spiral |
| early-type star | earth |
| earth observation (eo) | earth orbit |
| earth rotation | earth-observing system (eos) |
| earth-orbit rendezvous mode (eor) | earth-received time (ert) |
| earthlight | earthrate |
| earthrise | earth’e way |
| east-west effect | eastern test range (etr) |
| eccentric anomaly | eccentric orbit |
| eccentric ring structure | eccentricity |
| echo | eclipse |
| eclipse seasons | eclipse year |
| eclipsing binary | eclipsing variable star |
| ecliptic | ecliptic coordinate system |
| ecliptic diagram | ecliptic limits |
| ecliptic pole | eddington limit |
| eddington’s model | educator resource centre (erc) |
| edwards air force base | eemden function |
| effective radius | effective temperature |
| egeria | egg nebula |
| egress flight | einstein observatory |
| ejecta | ejection seat |
| elara | electromagnetic field |
| electromagnetic radiation | electromagnetic spectrum |
| electromagnetic waves | elektra |
| elementary ring structure | elephant trunks |
| elevated pole | elevon (contraction of elevator and aileron) |
| elliptical galaxy | elliptical ring structure |
| ellipticity | elongation |
| emden equation | emersion |
| emission nebula | emission-line galaxy |
| enceladus | encke’s comet |
| enckle division | encounter |
| encounter phase | energetic solar particles (solar cosmic rays) |
| energetic x-ray imaging survey telescope (exist) | energiya rocket (or energia rocket) |
| energiya rocket and space complex | engineering data |
| engineering model | engineering test satellite (ets) |
| enterprise | entry interface (ei) |
| environmental control system (ecs) | environmental satellite (goes) |
| environmental science services administration (essa) | environmental systems commercial space technology center (escstc) |
| environmental test | envisat |
| ephemeris | ephemeris day |
| ephemeris second | ephemeris time |
| epimetheus | epoch |
| equal-areas law | equation of the center |
| equation of time | equatorial acceleration |
| equatorial orbit | equatorial plane |
| equatorial system | equinoctial colure |
| equinox | equipment bay |
| ergometer | eridanus |
| eros | eruptive star |
| escape harness | escape orbit |
| escape suit | escape tower rocket |
| escape velocity | estival |
| estrack | eugenia |
| eunomia | euphrosyne |
| euromir | europa |
| europa rocket | european aeronautic defence and space company (eads) |
| european centre for medium- range weather forecasts (ecmwf) | european communications satellite (ecs) |
| european environmental control system (eecs) | european launcher development organization (eldo) |
| european organization for the exploitation of meteorological satellites (eumetsat) | european remote-sensing satellite (ers) |
| european space agency (esa) | european space operations centre (esoc) |
| european space research organization (esro) | european space technology centre (estec) |
| european telecommunications satellite organization (eutelsat) | evection |
| evening star | evening twilight |
| evershed effect | exhaust |
| exmeridian altitude | exmeridian observation |
| exobiology | exosat |
| expanding arm | expanding universe |
| expansion ratio | expedition one |
| expendable launch vehicle (elv) | experiment data record (edr) |
| experiment segment | experiments package (alsep) |
| experiments package (easep) | expert support laboratory (esl) |
| explorer | explosive bolt |
| external galaxy | extinction |
| extrasolar planet | extraterrestrial intelligence |
| extraterrestrial radiation | extravehicular activity (eva; or space walk) |
| extreme-ultraviolet explorer (euve) | extrinsic variable star |
| f corona | f spot |
| f star | f-1 engine |
| faber-jackson relation | facula |
| failure mode | fairing |
| faith 7 | falcate |
| fall | far encounter phase (fe) |
| far-ultraviolet spectroscopic explorer (fuse) | fast auroral snapshot explorer (fast) |
| fast nova | fast pulsar |
| fault-protection program | ferret satellite |
| fictitious year | field galaxy |
| field stars | field-line reconnection |
| filament | fireball |
| firing room | first lunar meridian |
| first quarter | fish stringer |
| fixed star | flame bucket |
| flame deflector | flamsteed’s number |
| flash | flash spectrum |
| flatness problem | flight control |
| flight control system (fcs) | flight data file (fdf) |
| flight deck | flight model |
| flight path | flight plan |
| flight simulator | flight suit |
| flight system | flotation collar |
| fluid shift | flux unit |
| fly-by | fly-by-wire |
| flyaround | flyback booster |
| focus | following limb |
| footprint | footrestraint |
| forbush decrease | fornax a |
| fornax cluster | fornax system |
| fortnightly nutation | fortuna |
| free fall | free ride |
| freedom 7 | frequency |
| frequency and timing system (fts) | friedmann universe |
| friendship 7 | front-end processor |
| fuel | fuel cell |
| fuel tank | full moon |
| fundamental star places | funneling |
| g star | g-force |
| g-meter | g-suit |
| gagarin cosmonaut training centre (in full : yuri gagarin cosmonaut training centre) | gaia |
| galactic bulge | galactic center |
| galactic concentration | galactic corona |
| galactic disk | galactic equator |
| galactic halo | galactic latitude |
| galactic light | galactic longitude |
| galactic nebula | galactic noise |
| galactic nova | galactic nucleus |
| galactic plane | galactic pole |
| galactic radiation | galactic rotation |
| galactic system | galactic windows |
| galatea | galaxy |
| galaxy cluster | galaxy evolution explorer (galex) |
| galilean satellites | galileo probe |
| galley | gamma radiation |
| gamma-ray astronomy | gamma-ray burst |
| gamma-ray large area space telescope (glast) | gamma-ray observatory (gro) |
| gamma-ray telescope | gantry |
| ganymede | gardening |
| gas chromatograph/mass spectrometer (gcms) | gas giant |
| gas-bounded nebula | gaspra (or asteroid 951) |
| gaussian constant | gaussian year |
| gegenschein | gemini |
| gemini project | geminids |
| general dynamic corporation | general precession |
| genesis mission | geocentric |
| geocentric coordinates | geocentric latitude |
| geocentric longitude | geocentric parallax |
| geocentric zenith | geographical position |
| geographos | geoidal horizon |
| geostationary operational | geostationary orbit (or geostationary earth orbit) |
| geosynchronous orbit (geo) | geosynchronous transfer orbit (gto) |
| geotail (gtl) | getaway special (gas) |
| giacobinids | giant planets |
| giant star | gibbous moon |
| gimbal | ginga (japanese: galaxy) |
| giotto | glavkosmos |
| gledhill disk | glenn research center |
| glideslope | glitch |
| global ozone measurement experiment (gome) | global ozone monitoring by occultation of stars (gomos) |
| global positioning system (gps) | globular star cluster |
| globule | gnomic |
| go | goddard space flight center |
| goddard trophy (in full: robert h goddard memorial trophy) | going uphill |
| goldstone | goonhilly |
| gould’s belt | gradual phase |
| grain | granat |
| granulation | granule |
| grappling pin | grappling snare |
| gravitational clustering | gravitational collapse |
| gravitational encounter | gravitational energy |
| gravitational equilibrium | gravitational field |
| gravitational field strength (symbol g) | gravitational force (or gravity) |
| gravitational lens | gravitational lensing |
| gravitational potential energy | gravitational waves |
| gravity probe | gravity recovery and climate experiment (grace) |
| gravity-field and steady-state ocean circulation explorer (goce) | gravity-field survey |
| grazing-incidence telescope | great attractor |
| great cluster | great observatories |
| great ret spot | great rift |
| great wall | great year |
| greatest elongation | greek group |
| green flash | greenwich apparent noon |
| greenwich apparent time | greenwich hour angle |
| greenwich interval | greenwich lunar time |
| greenwich mean noon | greenwich mean time |
| greenwich sidereal time | gregorian calendar |
| gross lift-off weight | ground communications facilities (gcf) |
| ground control | ground crew |
| ground data system (gds) | ground support |
| ground track | group |
| grumman aerospace | guest cosmonaut |
| guianese space centre | guidance system |
| guillotine factor | gum nebula |
| gunwale | gyroscope |
| gyrostabilized binoculars | h rocket |
| h-ii transfer vehicle (htv) | hadron era |
| hagoromo (japanese : ‘robe of heaven’) | hakucho (japanese : ‘swan’) |
| hale cycle | half-moon |
| halley’s comet | halo |
| ham | hamal |
| hand controller | handhold |
| hard suit | hard upper torso |
| harmonic law | harvard-draper sequence |
| harvest moon | hayabusa |
| hayashi track | heading alignment circle |
| heat shield | heat sink |
| heavy-ion counter (hic) | heavy-metal star |
| hebe | hektor |
| heliacal rising | heliacal setting |
| heliocentric | heliocentric coordinates |
| heliocentric julian date | heliocentric latitude |
| heliocentric longitude | heliocentric orbit |
| heliographic latitude | heliographic longitude |
| helios | heliosphere |
| helium flash | helium stars |
| helix nebula | hellas |
| hellespontus | heloseismology |
| hemispherical resonator gyroscope (hrg) | henyey track |
| herbig emission star | herbig-haro object |
| hercules | hercules cluster |
| hercules superculsters | hercules x-1 |
| hermes | herschel space observatory |
| hertzsprung gap | hertzsprung-russell diagram |
| hesperus | hess diagram |
| hidalgo | high earth orbit (heo) |
| high-energy astronomy observatory (heao) | high-energy particle detector |
| high-energy solar spectroscopic imager (hessi) | high-energy transient explorer 2 (hete-2) |
| high-gain antenna (hga) | high-inclination orbit |
| high-mass x-ray binary | high-speed multiplexer (hsm) |
| high-velcoity cloud | high-velocity star |
| hilda group | hiltner-hall effect |
| hind’s nebula | hinotori |
| hipparcos | hirayama family |
| hiten | hohmann transfer orbit (or hohmann trajectory) |
| hold | hold-down arm |
| holmberg radius | home institution |
| homologous transformation | horizon |
| horizon 2000 | horizon problem |
| horizontal branch | horizontal lander (hl) |
| horizontal parallax | horizontal take-off and landing (hotol) |
| horologium | horologium superclusters |
| horsehead nebula | hot dark matter |
| hour angel | hour circle |
| hubble | hubble classification |
| hubble constant | hubble flow |
| hubble law | hubble space telescope (hst) |
| hubble time | hubble’s variable nebula |
| hughes space and communication company | hunter’s moon |
| huygens atmospheric structure instrument (hasi) | hyades |
| hybrid rocket | hydra |
| hydra-cetaurus-pavo supercluster | hydrazine fuel |
| hydrogen burning | hydrogen star |
| hydrus | hygiea |
| hypergolic fuel | hyperion |
| hypersonics | hypoxia |
| iapetus | icarus |
| ida (asteroid 243) | igloo |
| imaging instrument | immersion |
| impact theory | impulsive phase |
| in-flight maintenance | inclination |
| inclination of axis | inclination of planetary orbits |
| indian national satellite system (insat) | indian remote-sensing satellite (irs) |
| indian space research organization (isro) | indus |
| inertia measurement unit (imu) | inertial guidance system |
| inertial orbit | inertial reference device |
| inertial upper-stage rocket (ius) | infall process |
| infall zone | inferior conjunction |
| inferior planet | inflationary universe cosmology |
| infrared astronomical satellite (iras) | infrared astronomy |
| infrared galaxy | infrared photo-polarimeter (isophot) |
| infrared radiation | infrared space observatory (iso) |
| infrared spectrometer (irs) | infrared star |
| ingress | ingress flight |
| ingress-egress platform | ingress-egress side hatch |
| initial mass function | initial weight |
| injection | inner lagrangian point |
| inner planet | insolation |
| instability strip | instantaneous field of view (ifov) |
| instituto nacional de pesquisas espaciais (french term) | instrument control unit (icu) |
| interamnia | intercalary day |
| intercombination line | intergalactic |
| intergalactic matter | interlocking ring structures |
| intermediate polar | international astronautical federation (iaf) |
| international astronomical union - (iau) | international cometary explorer (ice) |
| international geosphere- biosphere programme (igbp) | international institute of space law (iisl) |
| international latex corporation (ilc) | international maritime satellite organization (inmarsat) |
| interplanetary dust | interplanetary magnetic fleid |
| interplanetary medium | interplanetary monitoring platform (imp) |
| interplanetary space | interstellar |
| interstellar extinction | interstellar lines |
| interstellar matter | intracluster medium |
| intrinsic luminosity | intrinsic variable star |
| invariant plane | io |
| io torus | ionization front |
| iron meteorite | irregular cluster |
| irregular galaxy | irregular variable star |
| isotropic universe | j-2 engine |
| james webb space telescope (jwst) | jansky |
| janus | japan aerospace exploration agency (jaxa) |
| japanese experiment module | jason |
| jeans flux | jeans length |
| jet | jet propulsion |
| jet propulsion laboratory (jpl) | jettison |
| jiuquan satellite launch centre | johnson space center (jsc) |
| jovian planet | jovian van allen belts |
| julian calendar | julian date |
| julian day | julian ephemeris century |
| juliet | june solstice |
| juno | juno rocket |
| jupiter | k corona |
| k star | kagoshima space centre |
| kapetyn selected areas | kapetyn’s star |
| kapustin yar | kelvin time scale |
| kelvin-helmholtz contraction | kennedy space center (ksc) |
| kennelly-heaviside layer | keplerian motion |
| keplerian orbit | kepler’s equations |
| kepler’s laws | kepler’s supernova |
| kevlar | khrunichev space centre |
| kick stage | kiloparsec |
| kirkwood gaps | kleinmann-low nebula |
| klein’s hypothesis | kochab |
| kohoutek’s comet | korona (corona) |
| kourou | kuiper belt |
| lacaille’s constellations | lacerta |
| lagoon nebula | lagrangian point |
| lander | landing site |
| landsat | lane’s law |
| langley research center | large magellanic cloud |
| larissa | laser geodynamics satellite (lageos) |
| laser interferometer space antenna (lisa) | laser ring gyroscope |
| last quarter | late-type star |
| launch | launch and early orbit phase (leop) |
| launch azimuth | launch control center (lcc) |
| launch entry suit (les) | launch escape system |
| launch pad | launch phase |
| launch processing system (lps) | launch site |
| launch umbilical tower (lut) | launch weight |
| launch window | law of equal areas |
| leap year | leda |
| lenticular galaxy | leo |
| leo i system | leo ii system |
| leo minor | leonardo |
| leonids | lepton era |
| lepus | level error |
| lewis research center | lexell’s comet |
| libra | libration point |
| lidar | life-support system (lss) |
| lift-off | lift-to-drag ratio (l/d) |
| light | light curve |
| light ratio | light second |
| light time | light year |
| light-day | light-hour |
| limb brightening | limb darkening |
| limb sounding | line displacement |
| line of apsides | line profile |
| lineament | link-up |
| linknet | liquid cooling garment (lcg) |
| liquid fuel | liquid oxygen (lox) |
| lisa pathfinder | lithium star |
| little joe rocket | local apparent noon |
| local apparent time | local civil time |
| local group | local hour angle |
| local lunar time | local mean midnight |
| local mean noon | local mean time |
| local meridian | local noon |
| local sidereal noon | local sidereal time |
| local standard of rest | local star system |
| local supercluster | local time |
| lock-on | lola cloth |
| long march rocket | long-duration exposure facility (ldef) |
| long-period variable | look-back time |
| loop nebula | loop of retrogression |
| loss of signal (los) | low earth orbit (leo) |
| low-energy charged-particle detector (lecp) | low-gain atenna (lga) |
| low-inclination orbit | low-mass x-ray binary |
| low-velocity star | lower branch |
| lower transit | luminosity (or brightness) |
| luminosity function | luminous blue variable |
| luminous mass | luminous nebula |
| luna (or lunik) | lunabase |
| lunacorp | lunar appulse |
| lunar atmosphere | lunar base |
| lunar crater | lunar crust |
| lunar day | lunar dust |
| lunar dust | lunar eclipse |
| lunar ephemeris | lunar gravity |
| lunar inequality | lunar libration |
| lunar magnetic field | lunar mass |
| lunar meteoroid | lunar module (lm) |
| lunar month | lunar mountain |
| lunar node | lunar nodule |
| lunar noon | lunar nutation |
| lunar orbit insertion (loi) | lunar orbiter |
| lunar polarization | lunar pole |
| lunar prospector | lunar reconnaissance orbiter (lro) |
| lunar rock | lunar roving vehicle (lrv) or moon buggy) |
| lunar time | lunar topology |
| lunar year | lunar-a |
| lunar-mars life-support test project (lmlstp) | lunar-orbit rendezvous mode (lor) |
| lunarite | lunation |
| lunisolar precession | lunokhod |
| lupus | lupus loop |
| lyot division | lyra |
| lyrids | lysithea |
| m star | mach number |
| maclaurin spheroid | maffel system |
| magellan | magellanic clouds |
| magellanic stream | magnetic field |
| magnetic star | magnetosphere |
| magnitude | magnitude ratio |
| magnitude system | main engine cut-off |
| main sequence | main sequence star |
| major planet | man-rated |
| mandatory programme | manganese star |
| manned manoeuvring unit (mmu; informally called space bike) | manned orbital laboratory (mol) |
| manoeuvre | mao 1 |
| mare | mare (plural maria) |
| mariner | mars |
| mars climate orbiter | mars exploration rover mission |
| mars express | mars global surveyor (mgs) |
| mars observer | mars odyssey |
| mars pathfinder | mars polar lander |
| mars reconnaissance orbiter | mars science laboratory |
| marshall space flight center (msfc) | mascon |
| maser | mass |
| mass driver | mass ratio |
| mass spectrometer | mass-luminosity relation |
| massachusetts institute of technology (mit) | mate-demate facility |
| material science | mathilde (or asteroid 253) |
| matter era | maunder minimum |
| max q (or maximum dynamic pressure) | maxim pathfinder |
| mayall’s object | mean local solar time (mlst) |
| mean motion | mean noon |
| mean place | mean profile |
| mean sidereal time | mean solar day |
| mean solar second | mean solar time |
| mean sun | mean time |
| mechanical devices subsystem - (dev) | medium earth orbit (meo) |
| medium-gain antenna (mga) | medium-resolution imaging spectrometer (meris) |
| mercury | mercury project |
| mercury surface, space environment, geochemistry, and ranging (messenger) | mercury-manganese star |
| meridian altitude | meridian angle |
| meridian angle difference | meridian observation |
| meridian passage | meridian photometer |
| messier catalogue | messier number |
| messler’s catalog | metagalaxy |
| metal | metal-enhanced star formation |
| metal-rich star | meteor |
| meteor shower | meteor-burst communications |
| meteoric ionization | meteorite |
| meteoritics | meteoroid |
| meteorological satellite (metsat) | meteosat |
| metis | metonic cycle |
| michelson interferometer for passive atmospheric sounding (mipas) | microarcsecond x-ray imaging mission (maxim) |
| microgravity | microgravity science laboratory (msl-1) |
| micrometeorite | micrometeoroid impact |
| microvariability and oscillations of stars (most) | microwave limb sounder (mls) |
| microwave radiometer (mwr) | midcourse space experiment (msx) |
| midnight sun | milky way |
| milky way galaxy | mimas |
| mini workstation | minor planet |
| mir (russian ‘peace’ or ‘world’) | mira |
| mira variables | miranda |
| mission | mission control center (mcc) |
| mission control team (mct) | mission demonstration test satellite |
| mission design section | mission elapsed time (met) |
| mission operations and data analysis (mo & da) | mission specialist |
| mission station | mission status report |
| mixture ratio | modified julian date |
| modular locker | modularized equipment transporter (met) |
| module | modulus of distance |
| molecular cloud | momentum desaturation (desat; or momentum unload) |
| momentum wheel | monitor system (mon) |
| monoceros | monoceros loop |
| monoceros r2 molecular cloud | monopropellant |
| month | moon |
| moon probe | moon treaty (officially agreement governing the activities of states on the moon and other celestial bodies) |
| moon walk | moonrise |
| moonset | morelos satellite system (mss) |
| morning star | morning twilight |
| morphological astronomy | moving cluster |
| mullard space science laboratory (mssl) | multi-angle imaging |
| multi-mission modular spacecraft (mms) | multi-probe mission |
| multi-purpose logistics module (mplm) | multifoil microbrasion package (map) |
| multiplayer insulation (mil) | multiple star |
| multiple-docking adapter | multiplexing |
| multiring structure | multistage rocket |
| munich space chair (msc) | musca |
| n galaxy | n rocket |
| n star | nadir |
| nalad | nasa communications network (nascom) |
| national aeronautics and space act 1958 | national aeronautics and space administration (naca) |
| national air and space museum - (nasm) | national centre for space studies |
| national institute for space research | national oceanic and atmospheric administration (noaa) |
| national space club (nsc) | national space council |
| national space development agency (nasda) | national space policy |
| national space science data center (nssdc) | national space society (nss) |
| nautical twilight | navigation |
| navstar | near encounter phase (ne) |
| near real time (nrt) | near shoemaker |
| near stars | near-earth asteroid prospector (neap) |
| near-earth asteroid rendezvous | near-earth space |
| near-infrared mapping spectrometer (nims) | nebula |
| nebular hypothesis | nebular lines |
| nebular redshift | nebular transitions |
| nemesis | neptune |
| nereid | nestor |
| network operations control center (nocc) | neutral body position |
| neutral buoyancy laboratory (nbl) | neutral region |
| neutrino telescope | neutron drip |
| neutron matter | neutron star |
| new general catalogue | new horizons |
| new inflationary cosmology | new millennium program |
| new moon | ney-allen nebula |
| night | nimbus |
| nitrogen sequence | node |
| node 2 | node cycle |
| nodical month | nomex cloth |
| noon | noon interval |
| norma | normal spiral galaxy |
| north american aviation | north american nebula |
| north point | north polar distance |
| north polar sequence | north polar spur |
| north pole | northern lights |
| nova | nova rocket |
| novalike symbiotic | nozomi (japanese: ‘hope’) |
| nozzle | nuclear engine for rocket vehicle application (nerva) |
| nuclear time scale | nucleogenesis |
| nucleosynthesis | nucleus |
| nutation | nysa |
| o star | o-ring |
| ob association | oberon |
| oblateness | oblique ascension |
| oblique rotator | oblique sphere |
| obliquity of the ecliptic | observation satellites (ceoss) |
| observatory phase (ob) | occultation |
| occulting bar | occulting disk |
| ocean colour and temperature scanner (octs) | ofeq (hebrew: ‘horizon’) |
| offgassing | office of outer space affairs (unoosa) |
| office of space science and applications (ossa) | olbers’ paradox |
| old inflationary cosmology | olympus |
| olympus mons | omega nebula |
| one-way light time (owlt) | oort cloud |
| oort dark matter | open arc |
| open chain | open cluster |
| open universe | operational bioinstrumentation system (obs) |
| operations and checkout building (o and c building) | operations phase (or mission operations and data analysis phase) |
| ophelia | oppenheimer-volkoff limit |
| opportunity | opposition |
| optical double star | optical navigation image (opnav image) |
| optical solar reflector (osr) | optional programme |
| orbit | orbit trim manoeuvre (otm) |
| orbital debris | orbital manoeuvring system (oms) |
| orbital node | orbital period |
| orbital science corporation | orbital velocity |
| orbiter | orbiter processing facility (opf) |
| orbiting astronomical observatory (oao) | orbiting solar observatory (oso) |
| origem loop | original seven |
| origins program | orion |
| orion arm | orion molecular clouds |
| orion nebula | orion spur |
| orionids | orrey |
| orthostatic hypotension | oscillating universe |
| osculating orbit | ostriker-peebles halo |
| osumi | outer planets |
| outer space | outer space treaty |
| outgassing | overshoot boundary |
| owl nebula | p cygni star |
| p spot | pacific time |
| palapa (indonesian: ‘fruits of labour’) | pallas |
| pallet | pan-american space organization (paso) |
| pandora | pantry food |
| parabolic orbit | parabolic velocity |
| parachute | parallactic displacement |
| parallactic ellipse | parallactic equation |
| parallactic motion | parallactic orbit |
| parallax | parallel of altitude |
| parallel of declination | parallel sphere |
| parallel staging | paranthelion, parhelion |
| paraselene | paraselenic circle |
| parhelic circle | parker bound |
| parker model | parker‘s observatory |
| parking orbit | parking spot |
| parsec | pasiphae |
| patientia | pavo |
| payload | payload assist module (pam; formerly spinning solid upper stage) |
| payload bay | payload developer |
| payload fairing (or payload shroud) | payload module (plm) |
| payload operations control center (pocc) | payload specialist |
| peculiar star | peculiar velocity |
| pegasus | pegasus rocket |
| penetrator spacecraft | penumbra |
| penumbral waves | periapsis |
| periastron | pericronus |
| pericynthion | perigalacticon |
| perigee | perihelion |
| perijove | period |
| period-luminosity relation | periodic perturbation |
| perpetual calendar | perseids |
| perseus | perseus a |
| perseus arm | perseus cluster |
| perseus x-1 | perseus-pisces supercluster |
| personal egress air pack (peap) | personal satellite assistant (psa) |
| personnel launch system (pls) | perturbation |
| phase | phobos |
| phoebe | phoenix |
| photocell (or photoelectric cell) | photodiode |
| photoelectric magnitude | photographic magnitude |
| photographic meteor | photometric parallax |
| photosphere | photosynthetically active radiation (par) |
| photovisual magnitude | pictor |
| pilot | pilot chute |
| pioneer | pioneer venus |
| pisces | piscis australis |
| pitch | pitchover |
| plage | planck |
| planck era | planet |
| planetarium | planetary atmosphere |
| planetary data system (pds) | planetary mapper |
| planetary nebula | planetary orbit |
| planetary perturbation | planetary physics |
| planetary precession | planetary society |
| planetary system explorer | planetesimal |
| planetocentric coordinates | planetographic coordinates |
| planetography | planetology |
| plasma | plasma cloud |
| plasma detector | plasma tail |
| plasma wave instrument | plate center |
| plate constants | plate scale |
| plateau ring structure | platonic year |
| pleiades | plesetsk cosmodrome |
| plexiglas display screen | pluto |
| pogo | pogson scale |
| pointers | polar |
| polar cap | polar distance |
| polar night | polar orbit |
| polar plumes | polar sequence |
| polaris | pollux (geminiorium) |
| polygonal ring structure | poor cluster |
| pore | portia |
| position angle | positional astronomy |
| powered-descent initiation (pdi) | poynting-robertson effect |
| practical astronomy | praesepe |
| prebreathing | preceding limb |
| precession in declination | precession in right ascension |
| precession of nodes | precession of the equinoxes |
| precision ranging | precomputed altitude |
| predicts | preflare |
| preflight systems check | prenova |
| presidents’s scientific advisory committee (psac) | pressure bladder |
| pressure ionization | primary |
| primary body | primary contact |
| primary jet | primary life-support system (plss) |
| primitive black holes | principal investigator |
| processing and archiving centre (pac) | processing orbit |
| procyon | prograde motion |
| prograde orbit (or direct-motion orbit) | program star |
| progress | project rand (project, research and development) |
| projectile | promethazine |
| prometheus | prominence |
| propellant | proper motion |
| propulsion (or reaction propulsion) | prospero |
| proteus | protogalaxy |
| proton rocket | protostar |
| proxima centauri | psyche |
| ptolemaic system | puck |
| pulsar | pulsating star |
| puppies | puppies a |
| pure trojan group | pyrometer |
| pyrotechnic device (or pyro) | pyxis (malus) |
| q magnitude | quadrature |
| quarantine (french: quarantine ’40 days’) | quark star |
| quasar (quasi-stellar object) | Quasi stellar radio source |
| quasi-stellar object | quickscat |
| quiescent prominence | quiet sun |
| r association | R coronae borealis star |
| R magnitude | r monocerotis |
| R star | ra-shalom |
| rad | radar altimeter (ra) |
| radar astronomy | radarsat |
| radial velocity | radiant heat |
| radiation | radiation era |
| radiation sickness | radiation-bounded nebula |
| radiative braking | radiative equilibrium |
| radio astronomy | radio blackout |
| radio galaxy | radio meteor |
| radio nebula | radio relay |
| radio science system (rss) | radio source |
| radio star | radio storm |
| radio sun | radio tail object |
| radio telescope | radio wave |
| radiometric magnitude | radiosotope thermoelectric generator (rtg) |
| radius vector | raffaello |
| raketoplan (russian: ‘rocket plane’) | rand corporation |
| ravity) | ray |
| ray crater | ray system |
| re galaxy | re-entry |
| reach aid (or swizzle stick) | reaction control system (rcs) |
| reaction propulsion | real-time commanding |
| recession of galaxies | reconnection |
| recovery | recurrent nova |
| red dwarf | red dwarf star |
| red fuming nitric acid (rfna) | red giant |
| red giant star | red giant tip |
| red rover (or red rover goes to mars) | red spot |
| red white-dwarf star | redshift |
| redstone rocket | reduced proper motion |
| reduction of star places | reduction of the star |
| reduction of the sun | redundancy |
| reflection nebula | regional planetary imaging data facility (rpidf) |
| regression of nodes | regular cluster |
| regular variable star | regulus (little ruler) |
| rehydration station | relative orbit |
| relative sunspot number | relativity |
| remote manipulator system (rms) | remote sensing |
| remote terminal unit (rtu) | remote-control arm |
| rendezvous | rene 41 |
| rescue ball | reseau |
| restricted proper motion | reticulum |
| reticulum system | retrograde |
| retrograde motion | retrograde orbit |
| retrogression | retrorocket |
| return vehicle | reusable launch vehicle (rlv) |
| reuven rematy high-energy solar spectroscopic imager | reversible layer |
| revolution | rhea |
| rice grains | rich cluster |
| riding the stack (or riding the fire) | rigel (â orionis) |
| right ascension | right sphere |
| rigid sleep station | rigidized |
| rill | rill crater |
| rille | ring A |
| ring B | ring C |
| ring F | ring galaxy |
| ring nebula | ring plain |
| rings of saturn | ringwall structure |
| rise | RK galaxy |
| robot arm | robotic spacecraft |
| robotic vertigo | rocat (rocket catapult) |
| roche’s limit | rocket |
| rocket astronomy | rockets and satellites |
| rodnik (russian: ‘spring’) | roentgen |
| rogers dry lake | rohini |
| roll | roll reversal |
| rontgen satellite (rosat) | rood-sastry classification |
| rosalind | rosaviakosmos (rk) |
| rosetta | rosette nebula |
| rossi x-ray timing explorer (rxte) | round-trip light time (rtlt) |
| rover | rr lyrae stars |
| rs canum venaticorum stars | rudder |
| runaway star | russell mixture |
| rutherford appleton laboratory (ral) | rv tauri stars |
| rw aurigae stars | S star |
| S-type asteroid | Sa spiral |
| safing | sagitta |
| sagittarius | sagittarius arm |
| sagittarius star cloud | sakigake (japanese: ‘pioneer’) |
| salyut (russian: ‘salute’) | samara space centre (or tsskb-progress) |
| saros | satellite |
| satellite applications | satellite astronomy |
| satellite pour i’observation de la terre (spot) (french: ‘satellite for earth observation’) | satellite retrieval and redeployment |
| saturn | saturn nebula |
| saturn rocket | saturnicentric coordinates |
| saturnigraphic coordinates | saucer crater |
| scan platform | scanning image absorption spectrometer for atmospheric cartography (sciamachy) |
| scatterometer | scheat |
| schroter effect | schwarzschild criterion |
| schwarzschild radius | schwassman-wachmann comet |
| science data | science working group (swg) |
| scientific satellite atmospheric chemistry experiment (scisat) | scientist-astronaut |
| scintillation counter | sco-cen association |
| scorpio x-1 | scorpius |
| scrub | sculptor |
| sculptor group | sculptor system |
| scutum | sea rim |
| search for extraterrestrial intelligence | seasat |
| seawifs | secondary oxygen pack |
| sector boundary | sector structure |
| secular acceleration | secular parallax |
| secular perturbations | secular variable |
| secular variation | seed nuclei |
| seeing | selenocentric |
| selenodesy | selenodetic |
| selenofault | selenographic coordinates |
| selenographic latitude | selenographic longitude |
| selenological and engineering explorer (selene) | selenology |
| selenomorphology | semidetached binary |
| semidiameter | semidiurnal |
| semiregular variables | sensible horizon |
| separation | sequence of events (soe) |
| serpens | service module (sm) |
| service propulsion system (sps) | service tower |
| sextans | sextile aspect |
| seyfert galaxy | seyfert’s sextet |
| shadow bands | shahbazian objects |
| shaula | shell star |
| shen zhou | shepherding satellite |
| shoemaker-levy 9 | shooting star |
| short module | short period comet |
| shower meteor | shuang cheng tzu (or jiuquan satellite launch centre) |
| shutdown | shuttle mission simulator (sms) |
| shuttle orbiter medical system (soms) | shuttle radar topography mission (srtm) |
| shuttle training aircraft (sta) | sickle |
| side hatch | sidereal |
| sidereal day | sidereal hour angle |
| sidereal month | sievert (symbol sv) |
| sign of the zodiac | signal processing center (spc) |
| sim planet quest | simultaneous altitudes |
| single aperture far-infrared observatory (safir) | single-stage-to-orbit |
| sinope | siriometer |
| sirius | sky |
| sky diagram | sky map |
| skylab | skylight |
| sleep kit | sleep restraint |
| slow nova | small astronomy satellite (sas) |
| small magellanic cloud | small missions for advanced research and technology (smart) |
| snoopy helmet | soft landing |
| soft suit | solar activity |
| solar and heliospheric observatory (soho) | solar antapex |
| solar apex | solar bridge |
| solar burst | solar calendar |
| solar corona | solar cycle |
| solar day | solar eclipse |
| solar energy | solar faculae |
| solar flare | solar flux unit |
| solar magnetic field | solar max (in full: solar maximum mission (smm)) |
| solar month | solar motion |
| solar neutrino | solar neutrino unit |
| solar orbit | solar orbiter |
| solar panel | solar parallax |
| solar phase anagle | solar physics |
| solar power satellite (sps) | solar prominence |
| solar radiation | solar sail |
| solar sector | solar shield |
| solar spectrum | solar system |
| solar system | solar time |
| solar tower | solar type star |
| solar units | solar velocity |
| solar wind | solar, anomalous, and magnetospheric particle explorer (sampex) |
| solar-thermal-vacuum chamber (stv) | solid controlled orbital utility test rocket (scout) |
| solid fuel | solid-state imaging subsystem (ssi) |
| solid-state recorder | solstice |
| solstital colure | solstital points |
| sombrero galaxy | sonny carter training facility (sctf; formerly weightless environment training facility (wetf)) |
| sothic cycle | sound-level meter |
| sounding rocket | source function |
| south point | south polar distance |
| south tropical disturbance | southern lights |
| soyuz (russian: ‘union’) | space |
| space (or outer space, deep space) | space adaptation syndrome |
| space bike | space debris |
| space environment | space exploration initiative (sei) |
| space flight operations facility (sfof) | space flight tracking and data network (stdn) |
| space food | space foundation |
| space frontier foundation | space grant (nasa national space grant college and fellowship program) |
| space habitation module (spacehab) | space helmet |
| space launch complex 37 | space law |
| space legs | space medicine |
| space motion | space motion sickness (sms) |
| space physics data facility (spdf) | space probe |
| space programme | space qualified |
| space race | space radar laboratory (srl) |
| space reddening | space science board (ssb) |
| space science data operation office (ssdoo) | space services inc. (ssi) |
| space shuttle | space shuttle main engine (ssme) |
| space sickness (or space adaptation syndrome) | space simulator |
| space station | space task group (stg) |
| space technology research vehicle (strv) | space telescope science institute (stsci) |
| space tracking and data network (stdn) | space transportation system (sts) |
| space travel | space velocity |
| space walk | spaceborne imaging radar (sir) |
| spacecraft | spacecraft assembly facility (saf) |
| spacecraft bus | spacecraft central computer |
| spacecraft clock (sclk) | spacecraft event time (scet) |
| spacecraft position | spacecraft team |
| spacelab | spaceport |
| spacesuit | spaceworn |
| spartan 201 | specific impulse (isp) |
| spectral classification | spectral type |
| spectroheliogram | spectrometer |
| spectroscopic binary | spectroscopic parallax |
| spectrum | spectrum of turbulence |
| spectrum variable | speed brake |
| speed of light | spheres of eudoxus |
| spica | spicule |
| spin table | spin-up |
| spinning solid upper stage | spiral arms |
| spiral galaxy | spiral ring structure |
| spirit | spitzer space telescope (sst) |
| splashdown | sporadic meteor |
| sporer minimum | sporer’s law |
| spot group | spray |
| sputnik (russian: ‘fellow traveller’) | stabilization control system (scs) |
| stabilizing fin (or stabilizer) | stage zero |
| staging | standard coordinates |
| standard noon | standard star |
| standard time | standard time |
| standstill | star |
| star atlas | star catalog |
| star city | star cloud |
| star cluster | star color |
| star count | star day |
| star density | star drift |
| star finder | star group |
| star map | star motions |
| star names | star place |
| star scanner | star streaming |
| star tracker | star, morning |
| starburst | starburst galaxy |
| stardust | starsem |
| starspot | state vector |
| static firing | static universe |
| station keeping (or keeping station) | stationary point |
| statistical parallax | steady-state theory |
| steering thurster | stellar |
| stellar association | stellar atmosphere |
| stellar evolution | stellar flare |
| stellar light | stellar luminosity |
| stellar magnetic field | stellar mass |
| stellar model | stellar parallax |
| stellar photometry | stellar population |
| stellar pulsation | stellar rotation |
| stellar spectroscopy | stellar spectrum |
| stellar structure | stellar system |
| stellar temperature | stellar wind |
| stephan’s quintet | stinger |
| storage subsystem | stowage |
| stratospheric aerosol and gas experiment (sage) | strelka |
| stromgren radius | stromgren sphere |
| structural model | sub-orbital |
| subcluster | subdwarf star |
| subdwarf symbiotic | subgiant CH star |
| subgiant star | subluminous star |
| sublunar point | submillimeter astronomy |
| submillimetre wave astronomy satellite (swas) | subpulse |
| subsolar point | substellar point |
| subsystem | suisei (japanese: ‘comet’) |
| summer | summer solstice |
| sun | sun sensor |
| sun-grazing comet | sun-synchronous orbit |
| sunrise | sunseeker |
| sunset | sunshade |
| sunshine | sunspot |
| sunspot cycle | sunspot maximum |
| sun’s way | super guppy |
| super weight improvement program (swip) | super-metal-rich star |
| supercluster | superdense state |
| supergalaxy | supergiant |
| supergiant star | superior conjunction |
| superior planet | superluminal radio source |
| supermassive star | supernova |
| supernova remnant (snr) | supersonic aeronautics |
| superthermal particles | surface insulation |
| surface science package (ssp) | surge |
| surveyor | sustainer |
| suzaku | swann bands |
| swarm | swift |
| swing arm | swing-by |
| symbiotic objects | symbiotic star |
| synchrone | synchronous orbit |
| synchronous rotation | syncom (geosynchronous satellites) |
| syndyne | synodic |
| synodic month | synodic period |
| synthetic aperture radar (sar) | synthetic vision |
| syzygy | T association |
| T tauri star | T-38 jet trainer |
| taikonaut | tandem staging |
| tanegashima space centre (tnsc) | target vehicle |
| taurid meteor | taurus |
| taurus a | taurus cluster |
| taurus dark cloud | taurus rocket |
| technology transfer programme (ttp) | teflon cloth |
| tele-x (swedish telecom satellites) | telemetry |
| telemetry system (tlm) | telescope |
| telescope comet | telescopium |
| telesto | television infrared observation satellite (tiros) |
| telstar (us telecom satellites) | ten-minute hold |
| tenma (japanese: ‘heavenly horse’) | terminal area energy management (taem) |
| terminator | terra |
| terraforming | terrestrial planet finder (tpf) |
| terrestrial planets | terrestrial planets |
| tether | tethered satellite system (tss) |
| tethys | thalassa |
| thebe | themis |
| thermal tile | thisbe |
| thor rocket | three-alpha process |
| three-axis stabilization | three-way communications |
| throat | thrust chamber |
| thrust level | thrust vector control (tvc) |
| thruster | thuban |
| thule group | tidbinbilla |
| time meridian | time of ignition (tig) |
| time zone | titan |
| titan rocket | titania |
| top of atmosphere (toa) | topex/poseidon |
| toro | total eclipse, totality |
| total ozone mapping spectrometer (toms) | touchdown |
| tower telescope | tracking |
| tracking and data-relay satellite - (tdrs) | tracking station |
| tracking system (trk) | tracking, telemetry, and control (tt+c) |
| trail | train |
| trajectory | trajectory correction manoeuvre - (tcm) |
| trans-earth injection (tei) | transfer orbit |
| transient lunar phenomena | transit |
| transition region and coronal explorer (trace) | translation |
| translunar injection (tli) | transmission time (trm) |
| transponder | trapezium |
| triangulum | triangulum australe |
| trifid nebula | trigonometric parallax |
| triple-mode cepheid | triton |
| trojan planet | tropic of cancer |
| tropic of capricorn | tropical month |
| tropical year | true place |
| tsskb-progress | tsukuba space centre (tksc) |
| tucana | tully-fisher relation |
| turbo code | turnoff mass |
| turnoff point | twang |
| twilight | twilight correction |
| twilight zone | twin ring structures |
| twinkling stars | two-way non-coherent mode (twnc) |
| tycho | tychonic (solar) system |
| tycho’s nova | type i supernova |
| type ii supernova | types of spacesuit |
| u cephei | u geminorum stars (ss cygni stars) |
| u sagittae | uchinoura space centre (usc) |
| uhuru (or sas-1; swahilli: ‘freedom’) | ullage rocket |
| ultimate lines | ultra-long duration balloon (uldb) |
| ultra-stable oscillator (uso) | ultraviolet astronomy |
| ultraviolet radiation | ultraviolet star |
| ultraviolet-bright star | ulysses |
| umbilical cord (or umbilical) | umbilical tower (formerly launch umbilical tower or service tower) |
| umbra | umbriel |
| undershoot boundary | unidentified flying object (ufo) |
| united kingdom industrial space - committee (ukisc) | united states geological survey (usgs) |
| united states microgravity laboratory (usmg) | universal time (ut) |
| universal time coordinated | universal time coordinated (utc) |
| universe | universities space research association (usra) |
| uplink | upper atmosphere |
| upper transit | upper-atmosphere research satellite (uars) |
| uranography | uranometry |
| uranus | urca process |
| ursa major | ursa major cluster |
| ursa minor | ursids |
| us space and rocket center | uses of outer space (copuos) |
| uv ceti stars | uvby system |
| vacuum | valles marineris |
| van allen radiation belts | vanguard |
| variable nebula | variable star |
| variational inequality | vectored thrust |
| vega | vega |
| vehicle assembly building (vab) | vela |
| vela pulsar | vela supernova remnant |
| velcro | velocity curve |
| velocity-distance relation | velocity-of-light cylinder |
| velocity-of-light radius | venera |
| vent out | venus |
| venus express | vernal equinox |
| vertical circle | very long-baseline interferometry (vlbi) |
| vesta | viking |
| violet layer | virgo |
| virgo cluster | virial-theorem mass |
| visible horizon | visual binaries |
| visual magnitude | voenno-kosmicheski sily (or vks; russian: ‘military space forces’) |
| vogt-russell theorem | voice-operated relay (vor) |
| volan | volcanic theory |
| voskhod (russian: ‘ascent’) | vostok (russian: ‘east’) |
| voyager | vulcan |
| vulpecula | vv cephei stars |
| w stars | w ursae majoris stars |
| w virginis stars | walking orbit (or precessing orbit) |
| wallops flight facility | wanning moon |
| waste management system (wms) | waxing moon |
| weak-line t tauri star | week |
| weightlessness | weizsaecker’s theory |
| west point | west-trash stowage compartment |
| western test range | wet workshop |
| whipple shield | whirlpool galaxy |
| white dwarf | white dwarf star |
| white room | white sands test facility (wstf) |
| wicket tab | wide-field infrared explorer (wire) |
| wilkinson microwave anisotropy- probe (wmap) | wilson effect |
| wilson-bappu effect | wind profiling (river profiling) |
| window of opportunity | winter |
| winter solstice | wolf 359 |
| wolf-lundmark-melotte galaxy | wolf-rayet star |
| world calendar | world data center for satellite information (wdcsi) |
| world space week | wright’s phenomenon |
| wrinkle ridge | x axis |
| x prize | x-20 |
| x-43a | x-ray astronomy |
| x-ray background | x-ray binary |
| x-ray burster | x-ray cluster |
| x-ray nebulae | x-ray nova |
| x-ray telescope | x-series |
| xeus | y axis |
| yarkovsky effect | yaw |
| year | ylem |
| yohkoh (japanese: ‘sunbeam’) | yuri gagarin cosmonaut training - centre |
| z axis | z cam |
| z camelopardalis stars | zarya (russian: ‘sunrise’) |
| zenit rocket | zenith |
| zenith angle | zenith distance |
| zenographic coordinates | zentrum fur angewandte raumfahrttechnologie und mikrogravitation (zarm; centre of |
| zodiac | zodiacal constellations |
| zond | zone meridian (meridian of time zone) |
| zone, time | zvezda (russian: ‘star’) |
ஆசிரியர் குழு
பதிப்பகம் தமிழ் இணையப்பல்கலைக்கழகம் சென்னை
வெளியீடு தமிழக அரசின் கலைச்சொல்லாக்கக் குழு
பதிப்பாண்டு முதற்பதிப்பு - 2010
மின் பதிப்பாசிரியர் முனைவர் தமிழ்ப்பரிதி மாரி திட்ட முதன்மையர்
தமிழ்ப்பேழை இந்நூலின் உரிமை நிலை CC BY-SA
Publisher Tamil Virtual Academy
Chennai Published by Committee for Lexicon
of Terminologies Year of Publication 2010 Editor of ePublication Dr. Thamizhpparithi Maari Project Head Tamiḷ Pēḷai License of this book CC BY-SA
தமிழ்ப்பேழை இந்நூலின் உரிமை நிலை CC BY-SA
Publisher Tamil Virtual Academy
Chennai Published by Committee for Lexicon
of Terminologies Year of Publication 2010 Editor of ePublication Dr. Thamizhpparithi Maari Project Head Tamiḷ Pēḷai License of this book CC BY-SA