V909 Cassiopeiae

Cet article est une ébauche concernant une étoile.

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V909 Cassiopeiae
Données d'observation
(époque J2000.0)
Ascension droite 01h 36m 38,5546s[1]
Déclinaison +61° 25′ 53,897″[1]
Constellation Cassiopée
Magnitude apparente 10,54

Localisation dans la constellation : Cassiopée

(Voir situation dans la constellation : Cassiopée)
Caractéristiques
Type spectral B1III
Indice U-B −0,36
Indice B-V +0,39
Variabilité Beta Cephei
Astrométrie
Mouvement propre μα = −1,588 mas/a[1]
μδ = −0,378 mas/a[1]
Parallaxe 0,359 0 ± 0,011 6 mas[1]
Distance 2 786 ± 90 pc (∼9 090 al)[2]

Désignations

V909 Cas, TYC 4031-631-1, BD+60°282[2]

modifier

V909 Cassiopeiae (en abrégé V909 Cas), en français V909 de Cassiopée, est une étoile variable de type Beta Cephei située dans la constellation de Cassiopée. Elle fait partie de l'association OB8 de Cassiopée, dans le bras spiral de Persée de la Voie lactée. Sa période de pulsation moyenne est de 0,206 779 8 ± 0,000 000 1 jour[3].

Références

  1. ↑ a b c d et e (en) A. Vallenari et al. (Gaia collaboration), « Gaia Data Release 3 : Summary of the content and survey properties », Astronomy & Astrophysics, vol. 674,‎ , article no A1 (DOI 10.1051/0004-6361/202243940, Bibcode 2023A&A...674A...1G, arXiv 2208.00211). Notice Gaia DR3 pour cette source sur VizieR.
  2. ↑ a et b (en) V* V909 Cas -- Variable Star of beta Cep type sur la base de données Simbad du Centre de données astronomiques de Strasbourg.
  3. ↑ Boyd et Koff 2018.

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