HD 83183

This article is about h Carinae. For H Carinae, see HD 83095.

HD 83183 is a single^[9] star in the southern constellation of Carina. It has the Bayer designation h Carinae, while HD 83183 is the star's identifier from the Henry Draper catalogue. The star is blue-white in hue and is faintly visible to the naked eye with an apparent visual magnitude of 4.08.^[2] It is located at a distance of approximately 1,330 light years based on parallax,^[1] and is drifting further away with a radial velocity of +18 km/s.^[2] O. J. Eggen identified it as a member of the Pleiades group of co-moving stars.^[10]

HD 83183

Observation data Epoch J2000.0      Equinox J2000.0
Constellation	Carina
Right ascension	09h 34m 26.65081s[1]
Declination	−59° 13′ 47.1070″[1]
Apparent magnitude (V)	4.08[2]
Characteristics
Spectral type	B5 II[3]
B−V color index	−0.013±0.003[2]
Astrometry
Radial velocity (Rv)	+18.2±0.6[2] km/s
Proper motion (μ)	RA: −10.74[1] mas/yr Dec.: +6.60[1] mas/yr
Parallax (π)	2.46±0.10 mas[1]
Distance	1,330 ± 50 ly (410 ± 20 pc)
Absolute magnitude (MV)	−3.96[2]
Details
Mass	9.4±0.5[4] M☉
Radius	18[5] R☉
Luminosity	11,634[6] L☉
Surface gravity (log g)	2.50[7] cgs
Temperature	14,300[6] K
Rotational velocity (v sin i)	19±4[7] km/s
Age	24.5±3.8[4] Myr
Other designations
h Car, CPD−58°1576, GC 13246, HD 83183, HIP 46974, HR 3825, SAO 237117[8]
Database references
SIMBAD	data

This object is a massive bright giant star with a stellar classification of B5 II.^[3] It is 25^[4] million years old and is spinning with a projected rotational velocity of 19 km/s.^[7] The star has 9^[4] times the mass of the Sun and about 18^[5] times the Sun's radius. It is radiating 11,634 times the luminosity of the Sun from its enlarged photosphere at an effective temperature of 14,300 K.^[6]