Focloir r

From South Dublin Astronomical Society

radar s radar m1
radar astronomy réalteolaíocht f3 radair

radial component comhbhall m1 gathach
radial motion gluaisne f4 ghathach
radial velocity treoluas m1 gathach

radial velocity curve cuar m1 treoluais ghathaigh
radian s raidian m1
radiant s radaí m4

radiation belt (= Van Allen belt, Van Allen zone) crios m3 radaíochta
radiation laws dlíthe mpl radaíochta
radiation pressure brú m4 radaíochta

radiation sources foinsí fpl radaíochta
radiation spectrum (= electromagnetic spectrum) speictream m1 radaíochta
radiative equilibrium cothromaíocht f3 radantach

radioactivity s radaighníomhaíocht f3
radio astronomy radairéalteolaíocht f3
radio emissions rad-astúcháin mpl

radio emitter rad-astaíre m4
radio-frequency radiation (= RF radiation) radaíocht f3 radaimhinicíochta
radio galaxy radairéaltra m4

radio map radailéarscáil f2
radiometric magnitudes méideanna fpl radaiméadracha
radio noise radathorann m1

radio photometry radafótaiméadracht f3
radio pulse bíog f2 raidió
radio source (= point source, radio star) radafhoinse f4

radio star (= point source, radio source) radairéalta f4
radio storm radastoirm f2
radio sun radaighrian f2
radio telescope radaiteileascóp m1

radio wave radathonn f2
radio wavelength tonnfhad m1 raidió
radio window radafhuinneog f2

radius s ga m4 (pl-thanna)
radius vector veicteoir m3 gathach

Ram, the s (= Aries) (Const.) an Reithe m4
Ramsden ocular súil-lionsa m4 Ramsden

rapid binary déréalta f4 mhear
rapid bursts roiseanna fpl meara
Rasalgethi s (Star) Rasalgethi m4

ray s ga m4 (pl -thanna)
Rayleigh diffusion réscaipeadh m Rayleigh

reading microscope micreascóp m1 léitheoireachta
real luminosity fíorlonrachas m1
receiver s glacadóir m3

receiver noise torann m1 glacadóra
recession s cúlú m (gs -laithe)

recessional velocity treoluas m1 cúlaithe
recombination s athchuingriú m (gs -ithe)

recurrent nova nóva m4 ateagmhasach
reddening s deargadh m (gs -gtha)

red dwarf abhac m1 dearg
red giant fathach m1 dearg
red glow dearglach m1

red shift (= redshift) deargaistriú m (gs -rithe)
Red Spot, the (= the Great Red Spot) an Deargspota m4
re-entry s athiontráil f3

reflecting telescope (= reflector telescope) teileascóp m1 frithchaiteach
reflection s frithchaitheamh m1
reflection grating gríl f2 fhrithchaithimh

reflection instrument ionstraim f2 fhrithchaithimh
reflection nebula réaltnéal m1 frithchaithimh
reflector s frithchaiteoir m3

reflector telescope (= reflecting telescope) teileascóp m1 frithchaiteach
refracting angle uillinn f2 athraonta
refracting edge ciumhais f2 athraonta

refracting telescope (= refractor telescope) teileascóp m1 athraonta
refraction s athraonadh m (gs -nta)

refractor s athraonadóir m3
refractor telescope (= refracting telescope) teileascóp m1 athraonta
regolith s forscreamh f2

regular galaxies réaltraí mpl rialta
Regulus s (Star) Regulus m4
relative abundance líonmhaireacht f3 choibhneasta

relative speed luas m1 coibhneasta
relativistic red shift deargaistriú m coibhneasaíoch
relativity s coibhneasacht f3

remnant s iarsma m4
resolution s taifeach m1
resolvable nebula réaltnéal m1 intaifithe

resolve v taifigh (vn -feach)
resolving power cumas m1 taifigh
resonance s athshondas m1

reticle s mioneangach f2
Reticulum s (= the Net) (Const.) Reticulum m4

retrogradation s casiompú m (gs -paithe)
retrograde a casiompaithe gs as a

retrograde v casiompaigh
retrograde motion gluaisne f4 chasiompaithe
return s filleadh m1 (pl -llteacha)

reversing layer ciseal m1 cúlaithe
revolution s imrothlú m (gs -laithe)

revolution period tréimhse f4 imrothlaithe
RF radiation (= radio-frequency radiation) radaíocht f3 RM
Rhea s (Sat.) Rhea f4

Rigel s (Star) Rigel m4
right ascension dronairde f4
rill s (= cleft, rille) gág f2 ghealaí

rille s (= cleft, rill) gág f2 ghealaí
rim s imeall m1

ring s fáinne m4
ringlet s fáinneog f2
ring mountains sléibhte mpl fáinneacha

ring nebula réaltnéal m1 fáinneach
ring plain (= walled plain) machaire m4 fáinneach
rising s éirí m4

River, the s (= Eridanus) (Const.) an Abhainn f (gs -ann)
Roche limit teorainn f Roche

Roche lobes lóbaí mpl Roche
Roche's model samhail f3 Roche
rocket principles prionsabail mpl an roicéid

rocket research taighde m4 roicéad
rockoon s rocún m1
rocky core croí m4 carraigeach

Rosette nebula réaltnéal m1 an Róiséid
rotation s rothlú m (gs -laithe), rothlúchán m1

rotational period tréimhse f4 rothlaithe
rotational velocity treoluas m1 rothlaithe
rotation curve cuar m1 rothlúcháin

rotation parallax saobhdhiallas m1 rothlúcháin
r-process s r-phróiseas m1
RR Lyrae stars réaltaí fpl RR Lyrae

R series R-shraith f2
rubidium-strontium method modh m3 rúibidiam/strointiam
Rule, the s (= Norma) (Const.) an Riail f (gs

-alach)
runaway star réalta f4 éalaitheach
Russell diagram (= Hertzsprung-Russell diagram) léaráid f2 Russell
RV Tauri stars réaltaí fpl RV Tauri