31 And

Delta Andromedae

Delta Andromedae
(δ And / δ Andromedae)
Données d'observation
(Époque J2000.0)
Ascension droite 00h 39m 19,7s
Déclinaison +30° 51′ 39″
Constellation Andromède
Magnitude apparente +3,27
Magnitude absolue  ?
Distance 101 ± 2 al
(91 ± 1 pc)
Type spectral K3 III
Autres désignations
δ And (Bayer), 31 And (Flamsteed), HR 165, HD 3627, BD+30 91, SAO 54058, ADS 548 A, CCDM J00393 +3052A, FK5 20, HIP 3092

Delta Andromedae (δ And / δ Andromedae) est un système d'étoile triple dans la constellation d'Andromède. Elle se trouve à approximativement 101 années-lumière de la Terre.

Le composant primaire, δ Andromedae A est une géante orange de type K, avec une magnitude apparente de +3,27. Cette binaire spectroscopique a une période assez longue, celle-ci étant d'environ 15 000 jours, soit 41 ans. Son compagnon, δ Andromedae B, de treizième magnitude, est séparé du composant primaire de 28,7 secondes d'arc.

Voir aussi

Lien externe

  • Portail de l’astronomie Portail de l’astronomie
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