aberration

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aberration c (singular definite aberrationen, plural indefinite aberrationer)

aberrationen (definite singular)
aberrationer (indefinite plural)
aberration (indefinite nominative singular)
aberrationen (definite nominative singular)
aberrationer (indefinite nominative plural)
aberrationerne (definite nominative plural)
aberrations (genitive indefinite singular)
aberrationens (definite genitive singular)
aberrationers (genitive indefinite plural)
aberrationernes (definite genitive plural)


planet

planet c (singular definite planeten, plural indefinite planeter)

planeten (definite singular)
planeter (indefinite plural)
planet (indefinite nominative singular)
planeten (definite nominative singular)
planeter (indefinite nominative plural)
planeterne (definite nominative plural)
planets (genitive indefinite singular)
planetens (definite genitive singular)
planeters (genitive indefinite plural)
planeternes (definite genitive plural)


meteor

meteor (indefinite nominative singular)
meteoren (definite nominative singular)
meteoret (definite nominative singular)
meteorer (indefinite nominative plural)
meteorerne (definite nominative plural)
meteors (genitive indefinite singular)
meteorens (definite genitive singular)
meteorets (definite genitive singular)
meteorers (genitive indefinite plural)
meteorernes (definite genitive plural)


teleskop

teleskop n (singular definite teleskopet, plural indefinite teleskoper)

teleskopet (definite singular)
teleskoper (indefinite plural)
teleskop (indefinite nominative singular)
teleskopet (definite nominative singular)
teleskoper (indefinite nominative plural)
teleskoperne (definite nominative plural)
teleskops (genitive indefinite singular)
teleskopets (definite genitive singular)
teleskopers (genitive indefinite plural)
teleskopernes (definite genitive plural)


koma

koma c (singular definite komaen, not used in plural form)

(astronomy) coma (a cloud of dust surrounding the nucleus of a comet)


astronom

astronom c (singular definite astronomen, plural indefinite astronomer)

astronomen (definite singular)
astronomer (indefinite plural)
astronom (indefinite nominative singular)
astronomen (definite nominative singular)
astronomer (indefinite nominative plural)
astronomerne (definite nominative plural)
astronoms (genitive indefinite singular)
astronomens (definite genitive singular)
astronomers (genitive indefinite plural)
astronomernes (definite genitive plural)


måne

måne c (singular definite månen, plural indefinite måner)

månen (definite singular)
måner (indefinite plural)
måne (indefinite nominative singular)
månen (definite nominative singular)
måner (indefinite nominative plural)
månerne (definite nominative plural)
månes (genitive indefinite singular)
månens (definite genitive singular)
måners (genitive indefinite plural)
månernes (definite genitive plural)

From Old Norse máni (“the moon”), from Proto-Germanic *mēnô, from Proto-Indo-European *mḗh₁n̥s (“moon, month”). See also måned.

der

(astronomy) moon (a natural satellite of a planet, especially the Earth's moon)


ekliptika

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ekliptika c (singular definite ekliptikan, not used in plural form)


kosmologi

kosmologi c (singular definite kosmologien, plural indefinite kosmologier)

kosmologien (definite singular)
kosmologier (indefinite plural)


astronomi

astronomi c (singular definite astronomien, not used in plural form)

astronomien (definite singular)
astronomi (indefinite nominative singular)
astronomien (definite nominative singular)
astronomis (genitive indefinite singular)
astronomiens (definite genitive singular)


Helene

From Ancient Greek Ἑλένη (Helénē). Cognate with the English Helen.

(astronomy) A moon of the planet Saturn.


stjerne

stjerne c (singular definite stjernen, plural indefinite stjerner)

stjernen (definite singular)
stjerner (indefinite plural)
stjerne (indefinite nominative singular)
stjernen (definite nominative singular)
stjerner (indefinite nominative plural)
stjernerne (definite nominative plural)
stjernes (genitive indefinite singular)
stjernens (definite genitive singular)
stjerners (genitive indefinite plural)
stjernernes (definite genitive plural)

[ˈsd̥jæɐ̯nə]

From Old Norse stjarna (“star”), from Proto-Germanic *sternǭ, cognate with Swedish stjärna, English star, German Stern, Dutch ster, Gothic 𐍃𐍄𐌰𐌹𐍂𐌽𐍉 (stairnō). The word derived from Proto-Indo-European *h₂stḗr, which is also the source of Latin stēlla, Ancient Greek ἀστήρ (astḗr), ἄστρον (ástron), Sanskrit स्ता (stā́).

(astronomy) star (luminous celestial body)


komet

komet c (singular definite kometen, plural indefinite kometer)

kometen (definite singular)
kometer (indefinite plural)
komet (indefinite nominative singular)
kometen (definite nominative singular)
kometer (indefinite nominative plural)
kometerne (definite nominative plural)
komets (genitive indefinite singular)
kometens (definite genitive singular)
kometers (genitive indefinite plural)
kometernes (definite genitive plural)


Skytten

(astronomy) Sagittarius (an astrological sign).


Skorpionen

(astronomy) Scorpio (an astrological sign).


Tyren

(astronomy) Taurus (constellation; astrological sign)


Jomfruen

(astronomy) Virgo (an astrological sign).


begivenhedshorisont

begivenhedshorisont c (singular definite begivenhedshorisonten, plural indefinite begivenhedshorisonter)

begivenhedshorisonten (definite singular)
begivenhedshorisonter (indefinite plural)


månefase

månefase c (singular definite månefasen, plural indefinite månefaser)

månefasen (definite singular)
månefaser (indefinite plural)
månefase (indefinite nominative singular)
månefasen (definite nominative singular)
månefaser (indefinite nominative plural)
månefaserne (definite nominative plural)
månefases (genitive indefinite singular)
månefasens (definite genitive singular)
månefasers (genitive indefinite plural)
månefasernes (definite genitive plural)

[ˈmɔːnəˌfæːsə]


observatorium

observatorium n (singular definite observatoriet, plural indefinite observatorier)

observatoriet (definite singular)
observatorier (indefinite plural)
observatorium (indefinite nominative singular)
observatoriet (definite nominative singular)
observatorier (indefinite nominative plural)
observatorierne (definite nominative plural)
observatoriums (genitive indefinite singular)
observatoriets (definite genitive singular)
observatoriers (genitive indefinite plural)
observatoriernes (definite genitive plural)


formørkelse

formørkelse c (singular definite formørkelsen, plural indefinite formørkelser)

formørkelsen (definite singular)
formørkelser (indefinite plural)


hovedserien

From hoved (“(the) main”) + serien (“sequence”).


kredsløb

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kredsløb n (singular definite kredsløbet, plural indefinite kredsløb)

kredsløbet (definite singular)
kredsløb (indefinite plural)
kredsløb (indefinite nominative singular)
kredsløbet (definite nominative singular)
kredsløb (indefinite nominative plural)
kredsløbene (definite nominative plural)
kredsløbs (genitive indefinite singular)
kredsløbets (definite genitive singular)
kredsløbs (genitive indefinite plural)
kredsløbenes (definite genitive plural)

A circuit, a loop; a system in which something is passed through a cycle


fiksstjerne

fiksstjerne c (singular definite fiksstjernen, plural indefinite fiksstjerner)

fiksstjernen (definite singular)
fiksstjerner (indefinite plural)
fiksstjerne (indefinite nominative singular)
fiksstjernen (definite nominative singular)
fiksstjerner (indefinite nominative plural)
fiksstjernerne (definite nominative plural)
fiksstjernes (genitive indefinite singular)
fiksstjernens (definite genitive singular)
fiksstjerners (genitive indefinite plural)
fiksstjernernes (definite genitive plural)

From fiks (“fixed”) + stjerne (“star”), calque of Latin stēlla fīxa. Compare also English fixed star, German Fixstern. The term refers to the fact that its relative position in the sky seems constant (or the medieval belief that the stars are set on a sphere concentric to Earth), as opposed to vandrestjerner (“wandering stars”).


vandrestjerne

vandrestjerne c (singular definite vandrestjernen, plural indefinite vandrestjerner)

vandrestjernen (definite singular)
vandrestjerner (indefinite plural)
vandrestjerne (indefinite nominative singular)
vandrestjernen (definite nominative singular)
vandrestjerner (indefinite nominative plural)
vandrestjernerne (definite nominative plural)
vandrestjernes (genitive indefinite singular)
vandrestjernens (definite genitive singular)
vandrestjerners (genitive indefinite plural)
vandrestjernernes (definite genitive plural)

[ˈʋɑnd̥ʁɐˌsd̥jaɐ̯nə]

From vandre (“to wander”) + stjerne (“star”), as opposed to fiksstjerne. Calque of German Wandelstern, itself a calque of Ancient Greek πλανήτης (planḗtēs, “wanderer, planet”).


stjerneskud

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stjerneskud n (singular definite stjerneskuddet, plural indefinite stjerneskud)

stjerneskuddet (definite singular)
stjerneskud (indefinite plural)
stjerneskud (indefinite nominative singular)
stjerneskuddet (definite nominative singular)
stjerneskud (indefinite nominative plural)
stjerneskuddene (definite nominative plural)
stjerneskuds (genitive indefinite singular)
stjerneskuddets (definite genitive singular)
stjerneskuds (genitive indefinite plural)
stjerneskuddenes (definite genitive plural)

From stjerne + skud. Cognate with Norwegian Bokmål stjerneskudd, stjerneskott, Norwegian Nynorsk stjerneskot, stjerneskott and Swedish stjärnskott, nowadays only used figuratively.


rotationskurve

rotationskurve (indefinite nominative singular)
rotationskurven (definite nominative singular)
rotationskurver (indefinite nominative plural)
rotationskurverne (definite nominative plural)
rotationskurves (genitive indefinite singular)
rotationskurvens (definite genitive singular)
rotationskurvers (genitive indefinite plural)
rotationskurvernes (definite genitive plural)

For nære spiralgalakser kan man bestemme rotationskurven, V(R),^([sic]) ved at anvende radioteleskoper med god vinkelopløsning og observere 21 cm linien.

1981, Johannes Andersen, Leif Hansen, Birgitta Nordström, Galakser og kosmologi:

For near spiral galaxies, one can determine the rotation curve, V(R),^([sic]) by using radio telescopes with a good angular resolution and observe the 21 cm line.

Et nyt problem dukkede op midt i halvfjerdserne, da man begyndte at måle rotationskurver i spiralgalakser: Problemet med det mørke stof i Universet.

A new problem appeared in the mid-70's, when rotation curves of spiral galaxies began to be made: The problem of the dark matter in the universe.

Dette forventer man ellers, på basis af bl.a. rotationskurver for andre spiralgalakser, er et generelt træk for spiralgalakser ...

This, however, is expected to be a general trait of spiral galaxies, on the basis of, among other things, rotation curves of other spiral galaxies ...


solmasse

solmasse (indefinite nominative singular)
solmassen (definite nominative singular)
solmasser (indefinite nominative plural)
solmasserne (definite nominative plural)
solmasses (genitive indefinite singular)
solmassens (definite genitive singular)
solmassers (genitive indefinite plural)
solmassernes (definite genitive plural)

Det viser sig, at 2 sorte huller, med masser på omkring hhv. 36 og 29 solmasser, spirallerede ind mod hinanden, indtil de med en sluthastighed på 0.6c smeltede sammen til et større sort hul, med en masse på omkring 62 solmasser, således at ca. 3 solmasser blev udstrålet i form af gravitationelle bølger, i løbet af et splitsekund [133].

2016, Ulrik I Uggerhoj, Speciel Relativitetsteori, ISD LLC, →ISBN, page 245:

It turns out that two black holes, with masses of approx. 36 and 29 solar masses, respectively, spiraled inwards towards each other, until, at a final velocity of 0.6c, they fused into one larger black hole, with a mass of about 62 solar masses, such that approx. 3 solar masses was radiated in the form of gravitational waves, in the course of a splitsecond [133].

Det viser sig, at modeller med en masse på 1.2 solmasser og 90 % brint i yderzonen placerer sig i det område i farve-lysstyrke diagrammet, hvor de horisontale grene observeres.

1965, Popular astronomisk tidskrift utgiven av Svenska astronomiska sallskapet ...:

It turns out that models with a mass of 1.2 solar masses and 90 % hydrogen in the outer zone place themselves in the area of the colour-intensity diagram where the horizontal branches are observed.


galaksehob

galaksehob (indefinite nominative singular)
galaksehoben (definite nominative singular)
galaksehobe (indefinite nominative plural)
galaksehobene (definite nominative plural)
galaksehobs (genitive indefinite singular)
galaksehobens (definite genitive singular)
galaksehobes (genitive indefinite plural)
galaksehobenes (definite genitive plural)


kosmologisk konstant

cosmological constant
cosmological constant

(usually definite, cosmology) cosmological constant


stjernebillede

stjernebillede n (singular definite stjernebilledet, plural indefinite stjernebilleder)

stjernebilledet (definite singular)
stjernebilleder (indefinite plural)
stjernebillede (indefinite nominative singular)
stjernebilledet (definite nominative singular)
stjernebilleder (indefinite nominative plural)
stjernebillederne (definite nominative plural)
stjernebilledes (genitive indefinite singular)
stjernebilledets (definite genitive singular)
stjernebilleders (genitive indefinite plural)
stjernebilledernes (definite genitive plural)


jævndøgn

jævndøgn n (singular definite jævndøgnet, plural indefinite jævndøgn)

jævndøgnet (definite singular)
jævndøgn (indefinite plural)
jævndøgn (indefinite nominative singular)
jævndøgnet (definite nominative singular)
jævndøgn (indefinite nominative plural)
jævndøgnene (definite nominative plural)
jævndøgns (genitive indefinite singular)
jævndøgnets (definite genitive singular)
jævndøgns (genitive indefinite plural)
jævndøgnenes (definite genitive plural)