| Observation data Epoch J2000.00 Equinox J2000.00 | |
|---|---|
| Constellation | Carina [1] |
| Right ascension | 08h 00m 19.96579s [2] |
| Declination | −63° 34′ 02.8274″ [2] |
| Apparent magnitude (V) | 4.81 [1] |
| Characteristics | |
| Evolutionary stage | main sequence [2] |
| Spectral type | B4V [3] |
| B−V color index | −0.173±0.007 [1] |
| Astrometry | |
| Radial velocity (Rv) | +22.1±2.8 [1] km/s |
| Proper motion (μ) | RA: −1.762 [2] mas/yr Dec.: +19.905 [2] mas/yr |
| Parallax (π) | 6.9936±0.0826 mas [2] |
| Distance | 466 ± 6 ly (143 ± 2 pc) |
| Absolute magnitude (MV) | −1.11 [1] |
| Details | |
| Mass | 6.3±0.1 [4] M☉ |
| Radius | 3.77±0.27 [5] R☉ |
| Luminosity | 912 [6] L☉ |
| Surface gravity (log g) | 4.03±0.05 [5] cgs |
| Temperature | 16,983 [6] K |
| Metallicity [Fe/H] | −0.09±0.06 [7] dex |
| Rotational velocity (v sin i) | 43 [6] km/s |
| Age | 17.2±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 | |
| SIMBAD | data |
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. [1] It is located at a distance of approximately 466 light years from the Sun based on parallax, 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]