V357 Carinae

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For technical reasons, "A Carinae" redirects here. For the star with this Bayer designation, see HR 2554. For α Carinae, see Canopus.
V357 Carinae
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Carina
Right ascension 09h10m58.0s
Declination −58°58′01″
Apparent magnitude (V) +3.43
Distance 419 ± 25 ly
(128 ± 8 pc)
Spectral type B2IV-V
Other designations
a Carinae, HR 3659, HD 79351, CP−58°1419, HIP 45080, SAO 236693, GC 12696

V357 Carinae (a Car, a Carinae) is a spectroscopic binary in the constellation Carina. It is approximately 419 light years from Earth. The mean apparent magnitude of the system is +3.43.

V357 Carinae is composed of two similar blue-white B-type subgiants. This star has five times the radius of the Sun.[1] It is an eclipsing binary. Due to the eclipses, it is a variable star and its brightness varies from magnitude +3.41 to +3.44 with a period of 6.75 days, which is its orbital period.

References[edit]

  1. ^ Underhill, A. B. et al. (November 1979), "Effective temperatures, angular diameters, distances and linear radii for 160 O and B stars", Monthly Notices of the Royal Astronomical Society 189: 601–605, Bibcode:1979MNRAS.189..601U