Back V357 Carinae BS وی۳۵۷ شاه‌تخته Persian V357 Carinae French HD 79351 Italian りゅうこつ座a星 Japanese V357 Carinae Polish 117 Carinae Portuguese V357 Киля Russian V357 Carinae Swedish 海石增一 Chinese

V357 Carinae

This article is about a Carinae. For A Carinae, see HR 2554. For α Carinae, see Canopus.
V357 Carinae
Location of a Carinae (circled in red)
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Carina
Right ascension 09h 10m 58.086s[1]
Declination −58° 58′ 0.82″[1]
Apparent magnitude (V) +3.41 - 3.44[2]
Characteristics
Spectral type B2IV-V[3]
Variable type Eclipsing[2]
Astrometry
Radial velocity (Rv)23.3[4] km/s
Proper motion (μ) RA: −16.64[1] mas/yr
Dec.: 15.00 mas/yr
Parallax (π)7.30±0.35 mas[1]
Distance450 ± 20 ly
(137 ± 7 pc)
Orbit[5]
Period (P)6.74469 d
Eccentricity (e)0.18
Semi-amplitude (K1)
(primary)		21.5 km/s
Details
Aa1
Mass9.15[6] M☉
Radius5.0[7] R☉
Surface gravity (log g)4.0[7] cgs
Temperature21,744[7] K
Age18.7[8] Myr
Aa2
Mass1.10[6] M☉
Other designations
V357 Car, a Carinae, HR 3659, HD 79351, HIP 45080
Database references
SIMBADdata

V357 Carinae (a Car, a Carinae)[n 1] is an astrometric and spectroscopic binary in the constellation Carina. It is approximately 419 light years from Earth. The mean apparent magnitude of the system is +3.43. Outside of brightly-lit urban areas, it is easily visible to the naked eye. The star appears 46.0' (0.7668°) ENE of Iota Carinae at the heart of the asterism and constellation which is skewed in having bulk of the stars away from the eastern, Canopus prow of the ship and close to the imagined sails of the ship, Vela.

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  4. ^ Cite error: The named reference rv was invoked but never defined (see the help page).
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  6. ^ a b Cite error: The named reference msc was invoked but never defined (see the help page).
  7. ^ a b c Cite error: The named reference mnras189_601 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference tetzlaff was invoked but never defined (see the help page).


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