Focloir l

From South Dublin Astronomical Society

laboratory vacuum folús m1 saotharlainne
Lacerta s (= the Lizard) (Const.) Lacerta f4

lagoon s murlach m1
Lagoon nebula, the réaltnéal m1 an Mhurlaigh
Lagrangian point pointe m4 Lagrange

lapse rate ráta m4 titime
Large Magellanic Cloud, the (= Nubecula Major) (Gal.) Scamall m1 Mór Magellan

laser s léasar m1
last phase of Moon deireadh m1 gealaí
last quarter (of lunar phase) an cheathrú dheireanach

lateral motion gluaisne f4 chliathánach
lateral refraction athraonadh m cliathánach
latitude s (in general) leithead m1

latitude s (= terrestrial latitude) domhanleithead m1
launcher s lainseálaí m4
launching site ionad m1 lainseála

law of equal areas dlí m4 na limistéar comhionann
law of gravitation dlí m4 na himtharraingthe
leap day lá m bisigh

leap month mí f bhisigh
leap year bliain f3 bhisigh
Leda s (Sat.) Leda f4

lens s lionsa m4
lens diameter trastomhas m1 an lionsa
lenticular a lionsach

Leo s (= the Lion) (Const.) Leo m4
Leo Minor (= the Little Lion) (Const.) Leo Minor

Leonids spl (= November Swarm) (Met.Sh.) Leoinidí fpl
Lepus s (= the Hare) (Const.) Lepus m4

Lexell's comet cóiméad m1 Lexell
Libra s (= the Balance, the Scales) (Const.) Libra f4

libration s guagadh m (gs -gtha)
lift-off s éirí m4

light s solas m1
light curve cuar m1 an tsolais
light-gathering power cumhacht f3 solastiomsúcháin

light pressure solasbhrú m4
light-time effect iarmhairt f solais is ama
light year solasbhliain f3

limb s (of sun, etc.) imeall m1
limb-brightening s imeallghealadh m (gs -lta)

limb-darkening s imealldorchú m (gs -chaithe)
limiting magnitude méid f2 theorantach

line of apsides líne f4 na n-aipsisí
line of collimation líne f4 chomhlíniúcháin
line of equinoxes líne f4 na gcónocht

line of nodes líne f4 nód
line of sight líne f4 radhairc
line profile próifíl f2 líne

line spectrum línespeictream m1
Linné s (Crat.) Linné m4
Lion, the s (= Leo) (Const.) an Leon m1

liquid-fuelled rocket roicéad m1 leachtbhreosla
liquid hydrogen hidrigin f2 leachtach
liquid metallic hydrogen hidrigin f2 mhiotalach leachtach

lithosiderite s litisidirít f2
Little Bear, the (= Ursa Minor) (Const.) an Béar m1 Beag
Little Dog, the (= Canis Minor) (Const.) an Madra m4 Beag

Little Horse, the (= Equuleus) (Const.) an Capall m1 Beag
Little Lion, the (= Leo Minor) (Const.) an Leon m1 Beag

Little Snake, the (= Hydrus) (Const.) an Phéist f2 Bheag
Lizard, the s (= Lacerta) (Const.) an Laghairt f2

lobe s lóba m4
local civil time am m3 sibhialta áitiúil
local constant tairiseach m1 áitiúil

Local Group, the an Grúpa m4 Áitiúil
local time am m3 áitiúil
longitude s (in general) fad m1

longitude s (= terrestrial longitude) domhanfhad m1
longitude of the perihelion fad m1 an pheirihéilin
long-period Cepheid Ceifid f2 fhadtréimhseach

long-period variable star (= Mira star) réalta f4 athraitheach fhadtréimhseach
long-wavelength radio waves tonnta fpl raidió de thonnfhaid fhada
long-wave radiation radaíocht f3 fadtoinne

Loop nebula, the (= 30 Doradus, the Tarantula nebula) réaltnéal m1 na Lúibe
loose cluster réaltbhraisle f4 scaoilte
loose spiral galaxy réaltra m4 bíseach scaoilte

Lorentz-Fitzgerald contraction crapadh m Lorentz-Fitzgerald
low-power a ísealchumhachta gs as a

low tide lag m1 trá
luminosity s lonrachas m1
luminosity classes cineálacha mpl lonrachais

luminosity criteria critéir mpl lonrachais
luminosity effects iarmhairtí fpl lonrachais
luminosity function feidhm f2 (an) lonrachais

luminous a lonrúil
Luna probes (= Lunik probes) taiscéalaithe mpl Luna
lunar crater (= moon crater) cráitéar m1 gealaí

lunar crust screamh f2 na gealaí
lunar cycle (= Metonic cycle) ciogal m1 na gealaí
lunar distance fad m1 na gealaí (ó)

lunar eclipse éiclips m4 na gealaí, urú m4 na gealaí
lunarite s lúnairít f2

lunar libration guagadh m na gealaí
lunar module modúl m1 gealaí
lunar probes taiscéalaithe mpl na gealaí

lunar rays gathanna mpl na gealaí
lunar surface dromchla m4 na gealaí
lunar year bliain f3 ghealaí

lunation s (= synodic month) mí f ghealaí
Lunik probes (= Luna probes) taiscéalaithe mpl Lunik

luni-solar precession luainíocht f3 ghealaí is ghréine
luni-solar year bliain f3 ghealaí is ghréine
Lupus s (= the Wolf) (Const.) Lupus m4

Lyman-alpha line líne f4 Lyman-alpha
Lyman series sraith f2 Lyman
Lynx, the s (Const.) an Lincse f4

Lyot filter (= monochromatic filter) scagaire m4 Lyot
Lyra s (= the Lyre) (Const.) Lyra f4

Lyre, the s (= Lyra) (Const.) an Lir f2
Lyrids spl (Met.Sh.) Liridí fpl

Lysithia s (Sat.) Lysithia f4