WordReference Random House Unabridged Dictionary of American English © 2026
A star, [Astron.]
- Astronomya blue to white star, as Altair, Sirius, or Vega, having a surface temperature between 7500 and 10,000 K and an absorption spectrum dominated by Balmer-series lines of hydrogen. Cf. spectral type.
'A star' also found in these entries (note: many are not synonyms or translations):
Achernar
- Acrux
- Alcor
- Algol
- Alioth
- Ap star
- Bessel
- Beta Crucis
- Chandrasekhar limit
- Eta Carinae
- Fomalhaut
- Selznick
- Streisand
- absolute magnitude
- apparent magnitude
- ardent
- asterisk
- asteroid
- astral body
- astro-
- astrocyte
- bankable
- beta
- billing
- black hole
- body double
- bolometric magnitude
- but
- castor
- chromosphere
- circumstellar
- clasp
- color index
- constellate
- costar
- declination
- delta
- descend
- disaster
- double
- earthstar
- fire
- gamma
- giant star
- gravitational collapse
- hammer and sickle
- heliacal
- hexagram
- hour circle
- infrared star