FH Serpentis

FH Serpentis
Données d'observation
(époque J2000.0)
Ascension droite 18h 30m 47,0400s[1]
Déclinaison +02° 36′ 52,0264″[1]
Constellation Serpent
Magnitude apparente 4,5 Max.
16,8 Min.[2]

Localisation dans la constellation : Serpent

(Voir situation dans la constellation : Serpent)
Caractéristiques
Variabilité nova
Astrométrie
Mouvement propre μα = +2,060 mas/a[1]
μδ = −3,047 mas/a[1]
Parallaxe 0,951 2 ± 0,076 5 mas[1]
Distance 1 060+112
−68
 pc (∼3 460 al)[2]
Magnitude absolue −7,5 Max.
4,8 Min.[2]

Désignations

Nova Ser 1970, FH Ser, AAVSO 1825+02, 2MASS J18304704+0236520[3]
Courbe de lumière de FH Serpentis, obtenue à partir des données de l'AAVSO.

FH Serpentis (ou Nova Serpentis 1970) était une nova qui survint en 1970 dans la constellation du Serpent. Elle atteignit une magnitude minimale (correspondant à une luminosité maximale) de 4,5[2].

D'après la mesure de sa parallaxe par le satellite Gaia, elle est distante d'environ 1 060 pc (∼3 460 al)[2].

Notes et références

  1. a b c d et e (en) A. G. A. Brown et al. (Gaia collaboration), « Gaia Data Release 2 : Summary of the contents and survey properties », Astronomy & Astrophysics, vol. 616,‎ , article no A1 (DOI 10.1051/0004-6361/201833051, Bibcode 2018A&A...616A...1G, arXiv 1804.09365). Notice Gaia DR2 pour cette source sur VizieR.
  2. a b c d et e (en) Bradley E. Schaefer, « The distances to Novae as seen by Gaia », Monthly Notices of the Royal Astronomical Society, vol. 481, no 3,‎ , p. 3033-3051 (DOI 10.1093/mnras/sty2388, Bibcode 2018MNRAS.481.3033S, arXiv 1809.00180)
  3. (en) V* FH Ser -- Nova sur la base de données Simbad du Centre de données astronomiques de Strasbourg.

Liens externes

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