Focloir t

From South Dublin Astronomical Society

Table, the s (= Mensa) (Const.) an Tábla m4
tail s (of comet) eireaball m1 (cóiméid)

tangential velocity treoluas m1 tadhlaíoch
Tarantula nebula, the (= 30 Doradus, the Loop nebula) réaltnéal m1 an Tarantúla
T-associations spl T-ghaolmhaireachtaí fpl

Taurids spl (Met.Sh.) Táiridí fpl
Taurus s (= the Bull) (Const.) Taurus m4

Tautenburg telescope teileascóp m1 Tautenburg
Taygete s (Star) Taygete m4
tectonic a teicteonach

tectonics spl teicteonaic f2
tektite s teictít f2
telemetering s teiliméadrú m (gs -raithe)

telescope s teileascóp m1
Telescope, the s (= Telescopium) (Const.) an Teileascóp m1

telescopic a teileascópach
Telescopium s (= the Telescope) (Const.) Telescopium m4

telluric lines línte fpl teallúracha
Tellus s (Pl.) Tellus f4
Telstar 1 (Sat.) Telstar 1

Tempel's comet cóiméad m1 Tempel
temperature s teocht f3
temporal hours (= seasonal hours) uaireanta fpl aimseartha

temporary stars réaltaí fpl sealadacha
tenuous gas gás m1 tanaí
terminator s solasteorainn f (gs -ann)

terrestrial equator meánchiorcal m1 an domhain
terrestrial latitude domhanleithead m1
terrestrial longitude domhanfhad m1

terrestrial planets pláinéid mpl dhomhanda
Tethys s (Sat.) Tethys f4
theodolite s teodailít f2

theoretical astronomy réalteolaíocht f3 theoiriciúil
theoretical astrophysics réaltfhisic f2 theoiriciúil
thermocouple s teirmeachúpla m4

thermoelectric photometry fótaiméadracht f3 theirmileictreach
thermonuclear reaction imoibriú m teirmeanúicléach
thickness s (at the centre, edge) tiús m1 (sa lár, ag an imeall)

three-body problem fadhb f2 trí chorp
Thuban s (Star) Túban m1
tidal friction frithchuimilt f2 thaoidmhear

tides spl taoidí fpl
tilt See pan and tilt
time s am m3

time-dilation effect iarmhairt f amleata
time exposure nochtadh m ama
time of passing perihelion am m3 sroichte peirihéilin

time-reckoning s amchomhaireamh m1
time warp freangadh m ama
Tiros s (Sat.) Tiros m4

Titan s (Sat.) Tíotán m1
Titania s (Sat.) Titania f4

titanium oxide bands bandaí mpl ocsaíde tíotáiniam
Titius-Bode law (= Bode's law, Titius' law) dlí m4 Titius-Bode
Titius' law (= Bode's law, Titius-Bode law) dlí m4 Titius

topocentric zenith distance fad m1 topalárnach forair
total eclipse lánéiclips m4, lánurú m4
totality s lándorchadas m1

total magnitude lánmhéid f2
total mass lánmhais f2
Toucan, the s (= Tucana) (Const.) an Túcán m1

tower telescope túrtheileascóp m1
trail s rian m1 (pl -ta)

trajectory s ruthag m1
transfer ellipse (= transfer orbit, Hohmann orbit) éilips m4 aistrithe
transfer orbit (= Hohmann orbit, transfer ellipse) fithis f2

aistrithe
Transient Lunar Phenomenon Feiniméan m1 Díomuan Gealaí
transistor s trasraitheoir m3
transit s trasdul m3 (pl -lta)

transit instrument (= meridian transit instrument) ionstraim f2 thrasdula
transit micrometer micriméadar m1 trasdula
transits of Venus trasdulta mpl Véineas

transmission coefficient comhéifeacht f3 tarchuir
transmission grating gríl f2 tarchuir
transparent a trédhearcach

trans-Plutonian planets pláinéid mpl thras-Phlútónacha
transverse velocity treoluas m1 trasnach
Trapezium in Orion, the an Traipéisiam m4 in Oiríon

Triangle, the s (= Triangulum) (Const.) an Triantán m1
triangulation s triantánú m (gs -naithe)

Triangulum s (= the Triangle) (Const.) Triangulum m4
Triangulum Australe (= the Southern Triangle) (Const.) Triangulum Australe

Triangulum Spiral Bís f2 an Triantáin
Trifid nebula, the an réaltnéal m1 Trípháirteach
trigonometrical parallax saobhdhiallas m1 triantánúil

triple-alpha process (= Salpeter process) próiseas m1 trí-alfa
triple objective réadlionsa m4 triarach
triple star tríréalta f4

tripod s tríchosach m1
triquetrum s (= Ptolemy's rules) tríchearnán m1
tritium s tritiam m4

Triton s (Sat.) Tríotón m1
Trojan group (= the Trojans) grúpa m4 Traíoch
Trojans, the spl (= Trojan group) na Traígh mpl

tropical year (= solar year) bliain f3 thrópaiceach
Tropics spl na Trópaicí fpl
tropopause s trópastad m4

troposphere s trópaisféar m1
true equinoxes fíorchónochtaí mpl
true position fíorshuíomh m1

true sidereal time fíor-réaltam m3
Trumpler's classification aicmiú m Trumpler
Tucana s (= the Toucan) (Const.) Tucana f4

Tully-Fisher relation coibhneas m1 Tully-Fisher
Tunguska meteorite dreigít f2 Tunguska
turbulence s suaiteacht f3

turbulence theory teoiric f2 (na) suaiteachta
twenty-one-centimetre radiation radaíocht f3 ceintiméadar is fiche
twilight s breacsholas m1

twinkling s (= scintillation) drithliú m (gs -ithe)
Twins, the spl (= Gemini) (Const.) an Cúpla m4

two-body problem fadhb f2 dhá chorp
Tycho s (Crat.) Tycho m4
Tycho Brahe's star réalta f4 Tycho Brahe

Tychonic system córas m1 Tycho