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HD 34986 (V423 Aurigae)


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The 74th Special Name-list of Variable Stars
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Dust shells around certain early-type stars with emission lines.
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The distribution of OB stars in the directions of the stellar associations AUR OB 1 and 2
Forty two OB stars have been observed with the space telescope Glazar at1640 A in an area of about 17 sq deg in the direction of the stellarassociations Aur OB 1 and 2. Twenty five of the observed stars of knownspectral type and with colorimetric data are assigned to four stargroups: a B association at a distance of 600 pc and three O associationsat distances of 1100, 2000 and 3000 pc respectively, designated Aur B0.6, Aur OB 1.1, Aur OB 2.0, and Aur OB 3.0. Fourteen stars of unknownspectral type should be OB or at least early-A-type stars, since theirimages were obtained on photographs taken with Glazar. The latestpossible spectral types of these stars and also of stars for which thespectral types are known only roughly are determined. There is a more orless uniform dust cloud in front of the dense parts of the three distantassociations, which introduces an extinction of about 3.5 mag at 1640 A.

Some New Possible Variable Stars
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Osservazione e dati astrometrici

Costellazione:Auriga
Ascensione retta:05h23m10.07s
Declinazione:+35°42'32.3"
Magnitudine apparente:8.702
Distanza:2857.143 parsec
Moto proprio RA:1.5
Moto proprio Dec:-2.8
B-T magnitude:8.755
V-T magnitude:8.707

Cataloghi e designazioni:
Nomi esattiV423 Aurigae
  (Edit)
HD 1989HD 34986
TYCHO-2 2000TYC 2402-6-1
USNO-A2.0USNO-A2 1200-03240919
HIPHIP 25178

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