HR 3159

This article is about D Carinae. For d Carinae, see V343 Carinae.
HR 3159
Observation data
Epoch J2000.00      Equinox J2000.00
Constellation Carina
Right ascension 08h 00m 19.96678s[1]
Declination −63° 34′ 02.8420″[1]
Apparent magnitude (V) 4.81[2]
Characteristics
Spectral type B4V[3]
B−V color index −0.173±0.007[2]
Astrometry
Radial velocity (Rv)+22.1±2.8[2] km/s
Proper motion (μ) RA: −1.89[1] mas/yr
Dec.: 19.21[1] mas/yr
Parallax (π)6.53 ± 0.13 mas[1]
Distance499 ± 10 ly
(153 ± 3 pc)
Absolute magnitude (MV)−1.11[2]
Details
Mass6.3±0.1[4] M☉
Radius3.77±0.27[5] R☉
Luminosity912[6] L☉
Surface gravity (log g)4.03±0.05[5] cgs
Temperature16,983[6] K
Metallicity [Fe/H]−0.09±0.06[7] dex
Rotational velocity (v sin i)43[6] km/s
Age17.2±1.3[4] or 176[8] Myr
Other designations
D Car, CD−63°866, FK5 2624, GC 10893, HD 66591, HIP 39138, HR 3159, SAO 250069[9]
Database references
SIMBADdata

HR 3159 is a single[10] star in the southern constellation of Carina, positioned near the southern constellation border with Volans. It has the Bayer designation D Carinae; HR 3159 is the Bright Star Catalogue designation. This object has a blue-white hue and is visible to the naked eye with an apparent visual magnitude of +4.81.[2] It is located at a distance of approximately 499 light years from the Sun based on parallax,[1] and is drifting further away with a radial velocity of 22 km/s.

This object is a B-type main-sequence star with a stellar classification of B4V,[3] which indicates it is undergoing core hydrogen fusion. The star has a radius of nearly four times the radius of the Sun,[5] and over six[4] times the Sun's mass. Age estimates range from 17[4] up to 176[8] million years old, and it is spinning with a projected rotational velocity of 43 km/s.[6] It is radiating 912[6] times the luminosity of the Sun from its photosphere at an effective temperature of 16,983 K.[6]

  1. ^ a b c d e f Cite error: The named reference vanLeeuwen2007 was invoked but never defined (see the help page).
  2. ^ a b c d e Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference houk1978 was invoked but never defined (see the help page).
  4. ^ a b c d Cite error: The named reference Tetzlaff2011 was invoked but never defined (see the help page).
  5. ^ a b c Cite error: The named reference Fitzpatrick2005 was invoked but never defined (see the help page).
  6. ^ a b c d e f Cite error: The named reference Balona2019 was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference gaspar2016 was invoked but never defined (see the help page).
  8. ^ a b Cite error: The named reference Gontcharov2012 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference Eggleton2008 was invoked but never defined (see the help page).