Focloir s

From South Dublin Astronomical Society

Sagitta s (= the Arrow) (Const.) Sagitta f4
Sagittarius s (= the Archer) (Const.) Sagittarius m4

Saha equation cothromóid f2 Saha
Sails, the spl (= Vela) (Const.) na Seolta mpl

Salpeter process (= triple-alpha process) próiseas m1 Salpeter
saros s sáras m1
satellite s satailít f2

satellite astronomy réalteolaíocht f3 satailíte
satellite galaxy réaltra m4 satailíteach
Saturn s (Pl.) Satarn m1

Saturn's rings fáinní mpl Shatairn
Scales, the spl (= Libra, the Balance) (Const.) an Mheá f4

scanner s scanóir m3
scanning s scanadh m (gs -nta)

scattering of light scaipeadh m solais
Scheat s (Star) Scheat m4
Schedar s (Star) Schedar m4

Schmidt telescope teileascóp m1 Schmidt
Schönberg's limit teorainn f Schönberg
Schraffiercassette method modh m3 Schraffiercassette

scintillation s (= twinkling) drithliú m (gs -ithe)
scope s (instrument) scóp m1

Scorpion, the s (= Scorpius) (Const.) an Scairp f2
Scorpius s (= the Scorpion) (Const.) Scorpius m4

Sculptor, the s (Const.) an Dealbhóir m3
Scutum s (= the Shield, Sobieski's Shield) (Const.)

Scutum m4
Sea Goat, the (= Capricornus, the Goat) (Const.) an Gabhar m1
Sea of Clouds (= Mare Nubium) Muir f3 na Scamall

Sea of Cold (= Mare Frigoris) Muir f3 an Fhuachta
Sea of Crisis (= Mare Crisium) Muir f3 na nGábh
Sea of Fertility (= Mare Fecunditatis) Muir f3 na Torthúlachta

Sea of Humours (= Mare Humorum) Muir f3 na Lionnta
Sea of Nectar (= Mare Nectaris) Muir f3 an Neachtair
Sea of Serenity (= Mare Serenitatis) Muir f3 an tSuaimhnis

Sea of Showers (= Mare Imbrium) Muir f3 na Báistí
Sea of Tranquillity (= Mare Tranquillitatis) Muir f3 na Sáimhe
Sea of Vapours (= Mare Vaporum) Muir f3 na Gaile

season s séasúr m1
seasonal hours (= temporal hours) uaireanta fpl séasúrtha
secondary mirror scáthán m1 tánaisteach

secondary spectrum speictream m1 tánaisteach
secular a ciantréimhseach
secular aberration iomrall m1 ciantréimhseach

secular acceleration luasghéarú m ciantréimhseach
secular parallax saobhdhiallas m1 ciantréimhseach
secular perturbation corraíl f3 chiantréimhseach

secular variation comhathrú m ciantréimhseach
sedimentary rock carraig f2 dhríodair
seeing s léargas m1

seismometer s seismiméadar m1
selected areas (= Kapteyn's selected areas) limistéir mpl roghnaithe
selective absorption ionsú m4 roghnaíoch

selenium photometer fótaiméadar m1 seiléiniam
selenography s seiléineagrafaíocht f3
self-luminosity s féinlonrachas m1

self-luminous a féinlonrach
semimajor axis ais f2 leathmhór
semiminor axis ais f2 leathbheag

semiregular a leathrialta
semiregular variables réaltaí fpl athraitheacha leathrialta
sensitive a íogair

sensitivity s íogaireacht f3
separation s deighilt f2
Serpens s (= the Serpent) (Const.) Serpens m4

Serpens Caput (= the Serpent's Head) Serpens Caput
Serpens Cauda (= the Serpent's Tail) Serpens Cauda
Serpent, the s (= Serpens) (Const.) an Phéist f2

Serpentarius s (= Ophiuchus, the Serpent-bearer) Serpentarius m4
Serpent-bearer, the s (= Ophiuchus, Serpentarius) Fear m1

na bPéisteanna
Serpent's Head, the (= Serpens Caput) Ceann m1 na Péiste
Serpent's Tail, the (= Serpens Cauda) Eireaball m1 na Péiste
Seven Sisters, the (= Pleiades) (Clust.) an tÉillín m4, an Phléadach f2, an Streoillín m4, an Tréidín m4

Sextans s (= the Sextant) (Const.) Sextans m4
sextant s seiseamhán m1

Sextant, the s (= Sextans) (Const.) an Seiseamhán m1
Seyfert galaxies réaltraí mpl Seyfert

shadow band scáthbhanda m4
shadow transits trasdulta mpl scáthanna
Shapley's wing sciathán m1 Shapley

shell model sceallsamhail f3 (pl -mhlacha)
shell star sceallréalta f4
Shield, the s (= Scutum, Sobieski's Shield) (Const.)

an Sciath f2
shift s aistriú m (gs -ithe)
Ship, the s (= Argo, Argo Navis) (Const.) an Long f2

shock wave tonn f2 turrainge
shooting star (= falling star, meteor) réalta f4 reatha
short-period Cepheid Ceifid f2 ghearrthréimhseach

short-period comet cóiméad m1 gearrthréimhseach
shower meteor cithdhreige f4
shuttle s tointeálaí m4

shuttle v tointeáil
Sickle of Leo, the Corrán m1 an Leoin
sidereal a réaltach

sidereal day réaltlá m (gs -lae)
sidereal month réaltmhí f (gs -íosa)

sidereal period réalt-tréimhse f4
sidereal time réaltam m3
sidereal year réaltbhliain f3
siderite s (= iron meteorite) sidirít f2

siderostat s (= coelostat, heliostat) sidearastat m1
signs of the Zodiac comharthaí mpl an Stoidiaca
silicate s sileacáit f2

singularity s singilteacht f3
Sinope s (Sat.) Sinope f4
Sinus Iridum (= Bay of Rainbows) Sinus Iridum

Sirius s (= the Dog Star) (Star) Sirius m4
Sirius B (= Companion of Sirius) (Star) Sirius B

sky-brightness s (= starry light) spéirghealach f2
slit s scoiltín f4
slit spectrograph speictreagraf m1 scoiltíneach

slot s sliotán m1
small circle beagchiorcal m1
Small Magellanic Cloud, the (= Nubecula Minor) (Gal.) Scamall m1

Beag Magellan
Sobieski's Shield (= Scutum, the Shield) (Const.) Sciath f2 Sobieski
sodium s sóidiam m4

soft landing tuirlingt f bhog
solar activity grianghníomhaíocht f3
solar annual motion grianghluaisne f4 bhliantúil

solar battery griancheallra m4
solar constant griantairiseach m1
solar corona grianchoróin f (gs -ónach)

solar day grianlá m (gs -lae)
solar disc diosca m4 na gréine

solar eclipse éiclips m4 na gréine, urú m4 na gréine
solar eruption (= flare, solar flare) brúchtadh m gréine

solar flare (= flare, solar eruption) grianbhladhm f3
solar instrument grianionstraim f2
solar maximum uasghníomhaíocht f3 na gréine

solar nebula réaltnéal m1 na gréine
solar neighbourhood ceantar m1 na gréine
solar parallax saobhdhiallas m1 na gréine

solar prominence (= prominence) starraiceacht f3 (ghréine)
solar radiation radaíocht f3 na gréine
solar rotation grianrothlú m (gs -laithe)

solar spectrum grianspeictream m1
solar system grianchóras m1
solar time grian-am m3
solar wind grianghaoth f2

solar year (= tropical year) bliain f3 na gréine
solstice s grianstad m4
solstitial colure colúr m1 an ghrianstad

Sombrero-Hat galaxy réaltra m4 an tSoimbréaró
sonic boom tormán m1 sonach
Sothic cycle ciogal m1 Sótach

south celestial pole pol m1 neamhaí theas
Southern Cross, the (= the Cross, Crux Australis) (Const.) Cros f2 an Deiscirt
Southern Crown, the (= Corona Australis) (Const.) Coróin f

an Deiscirt
Southern Fish, the (= Piscis Austrinus) (Const.) Iasc m1 an Deiscirt
southern lights (= aurora australis) na gealáin mpl theas

Southern Triangle, the (= Triangulum Australe) (Const.) Triantán m1 an Deiscirt
south galactic pole pol m1 theas an Réaltra
south point pointe m4 an deiscirt

south pole pol m1 theas
space s an spás m1
space capsule spáschapsúl m1

space flight spáseitilt f2
space lab(oratory) saotharlann f2 spáis
space medicine míochaine f4 spástaistil

space probe taiscéalaí m4 spáis
space shuttle spástointeálaí m4
space station stáisiún m1 spáis

spacesuit s culaith f2 spáis
space telescope spásteileascóp m1
space travel spástaisteal m1

spacewalk s siúlóid f2 spáis
space warp freangadh m spáis
specific gravity sainmheáchan m1

spectral analysis anailís f2 speictreach
spectral class (= spectral type) aicme f4 speictreach
spectral lines línte fpl speictreacha

spectral-luminosity diagram léaráid f2 speictrim is lonrachais
spectral type (= spectral class) aicme f4 speictreach
spectrograph s (= spectroscope) speictreagraf m1

spectroheliogram s speictrihéileagram m1
spectroheliograph s speictrihéileagraf m1
spectrometer s speictriméadar m1

spectrophotometric gradient grádán m1 speictreafótaiméadrach
spectrophotometry s speictreafótaiméadracht f3
spectroscope s (= spectrograph) speictreascóp m1

spectroscopic binary déréalta f4 speictreascópach
spectroscopic parallax saobhdhiallas m1 speictreascópach
spectrum s speictream m1

speculum s spéacalam m1
spherical aberration iomrall m1 sféarúil
spherical angle uillinn f2 sféarúil

spherical astronomy réalteolaíocht f3 sféarúil
spherical galactic halo luan m1 réaltrach sféarúil
spherical triangle triantán m1 sféarúil

spheroid s sféaróideach m1
Spica s (Star) Spica f4
spicule s spícín m4

spin v cas spins on its axis casann ar a ais
spiral s (= spiral galaxy, spiral nebula) bís f2 (pl

-eanna)
spiral arms géaga fpl bíseacha
spiral galaxy (= spiral, spiral nebula) réaltra m4 bíseach
spiral nebula (= spiral, spiral galaxy) réaltnéal m1 bíseach

spirit level leachtleibhéal m1
sporadic meteors dreigí fpl treallacha
spring s earrach m1

spring tide rabharta m4
s-process s-phróiseas m1
spurious disc diosca m4 bréagach

Sputnik s (Sat.) Sputnik m4
SS Cygni stars réaltaí fpl SS Cygni
S series S-sraith f2

S stars S-réaltaí fpl
stage s céim f2 (pl -eanna)

standard meridian fadlíne f4 chaighdeánach
standard sequence seicheamh m1 caighdeánach
standard time am m3 caighdeánach

star s réalta f4
star s (= body, planet) (in general) rinn m3

star association (= stellar association) réaltghaolmhaireacht f3
star atlas réaltatlas m1
star catalogue réaltchatalóg f2
star cloud réaltscamall m1

star cluster (= stellar cluster) réaltbhraisle f4
star colour réaltdath m3
star count réalt-áireamh m1
star density réaltdlús m1

star-distance s réaltfhad m1
star drift réaltsíobadh m (gs -btha)

star field réaltréimse m4
star gauge réalt-tomhas m1
Stark effect iarmhairt f3 Stark

starlight s réaltsolas m1
starlit night oíche f4 spéirghealaí
star of first magnitude réalta f4 den chéad mhéid

starry a réaltach
starry light (= sky-brightness) spéirghealach f2
starry nebula réaltnéal m1 réaltach

star-shower réaltchith m3 (pl -cheathanna)
star stream réaltsruth m3
star trails réaltrianta mpl

static universe cruinne f4 statach
stationary point pointe m4 cónaitheach
stationary satellite satailít f2 chónaitheach

steady-state theory teoiric f2 na foistine
steady-state universe cruinne f4 fhoisteanach
Stefan-Boltzmann law (= Stefan's law) dlí m4 Stefan-Boltzmann, dlí m4 Stefan

stellar age aois f2 réaltach
stellar association (= star association) gaolmhaireacht f3 réaltach
stellar astronomy réalteolaíocht f3 réaltach

stellar atmosphere atmaisféar m1 réaltach
stellar cluster (= star cluster) réaltbhraisle f4
stellar diameter trastomhas m1 réaltach

stellar distribution dáileadh m réaltach
stellar evolution éabhlóid f2 réaltach
stellar explosion pléascadh m réalta

stellar masses maiseanna fpl réaltacha
stellar parallax saobhdhiallas m1 réaltach
stellar photography (= astrophotography) fótagrafaíocht f3

réaltach
stellar photometry (= astrophotometry) fótaiméadracht f3 réaltach
stellar population (= population, population type) réaltchineál m1 (pl -acha)

stellar radiation radaíocht f3 réaltach
stellar spectra speictrim mpl réaltacha
stellar statistics staitisticí fpl réaltacha

stellar system córas m1 réaltach
Stephan's quintet cúigréad m1 Stephan
stereo-comparator s steiréachomparadóir m3

Stern, the s (= the Poop, Puppis) (Const.) Deireadh m1 na Loinge
stony meteorite dreigít f2 chloiche

storm burst stoirmbhrúchtadh m (gs -chta)
Straight Wall, the an Balla m4 Díreach

stratosphere s strataisféar m1
striding level scarleibhéal m1
stroboscopic a stróbascópach

Stromberg's asymmetrical star streams réaltsruthanna mpl neamhshiméadracha Stromberg
structure s (of star) comhdhéanamh m1
subdwarf s fo-abhac m1

subgiant s fo-fhathach m1
suborbital flight eitilt f2 fho-fhithiseach
subsolar point pointe m4 foghréine

summer s samhradh m1
summer solstice grianstad m4 an tsamhraidh
summer triangle triantán m1 an tsamhraidh

Sun, the s an Ghrian f2
sundial s clog m1 gréine
sundog s (= mock sun, parhelion) grian f2 bhréige

sungrazers spl gaobhardaithe mpl gréine
sun's motion gluaisne f4 na gréine
sunspot s grianspota m4

sunspot cycle ciogal m1 na ngrianspotaí
sunspot number líon m na ngrianspotaí
supergalaxy s for-réaltra m4

supergiant s ollfhathach m1
superior conjunction cónasc m1 uachtair
superior culmination buaic f2 uachtair

superior planet (= outer planet) pláinéad m1 lasmuigh
supernova s ollnóva m4
super-Schmidt s ollteileascóp m1 Schmidt

surface area achar m1 dromchla
surface brightness gile f4 dromchla
surface photometer fótaiméadar m1 dromchla

surface temperature teocht f3 dromchla
surge s borradh m (gs -rrtha)

Swan, the s (= Cygnus, the Northern Cross) (Const.) an Eala f4
Sword of Orion (= Orion's Sword) (Neb.) Claíomh m1 Oiríon

Swordfish, the s (= Dorado) (Const.) an Colgán m1
Sword-Handle, the s (= the Double Cluster in Perseus) (Clust.)

Dorn m1 an Chlaímh
symbiotic star réalta f4 shiombóiseach
synchronous rotation rothlú m sioncrónach

synchronous satellite satailít f2 shioncrónach
synchrotron emission astú m sioncratróin
synchrotron radiation radaíocht f3 sioncratróin

synodic(al) period tréimhse f4 shionadach
synodic month (= lunation) mí f shionadach
Syrtis Major Syrtis Major

systematic error earráid f2 chórasach
syzygy s sisige f4