HD 75710
Star in the constellation Vela
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HD 75710 is a single[9] star in the constellation of Vela. It has an apparent visual magnitude of approximately 4.94,[1] which is bright enough to be faintly visible to the naked eye. Based upon an annual parallax shift of 2.7 mas,[2] it is located about 1,200 light-years from the Sun.
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Vela[1] |
| Right ascension | 08h 49m 47.63746s[2] |
| Declination | −45° 18′ 28.3346″[2] |
| Apparent magnitude (V) | 4.94[1] |
| Characteristics | |
| Spectral type | A2 III[3] |
| B−V color index | +0.043±0.003[1] |
| Astrometry | |
| Radial velocity (Rv) | +5.0±7.4[4] km/s |
| Proper motion (μ) | RA: −11.490[2] mas/yr Dec.: +13.450[2] mas/yr |
| Parallax (π) | 2.7107±0.1660 mas[2] |
| Distance | 1,200 ± 70 ly (370 ± 20 pc) |
| Absolute magnitude (MV) | −2.71[1] |
| Details | |
| Mass | 2.8[5] M☉ |
| Radius | 15[6] R☉ |
| Luminosity | 1,668[6] L☉ |
| Surface gravity (log g) | 3.38[5] cgs |
| Temperature | 9,456[6] K |
| Metallicity [Fe/H] | −1.03[5] dex |
| Rotational velocity (v sin i) | 110[7] km/s |
| Other designations | |
| g Vel, CD−44°4861, FK5 2698, GC 12204, HD 75710, HIP 43347, HR 3520, SAO 220540, PPM 313660[8] | |
| Database references | |
| SIMBAD | data |
The stellar classification of this star is A2 III,[3] suggesting it is in the giant star stage of its stellar evolution. It has a high rate of spin with a projected rotational velocity of 110 km/s, which is giving the star an oblate shape with an equatorial bulge that is 7% larger than the polar radius.[7] HD 75710 is radiating 1,668 times the Sun's luminosity from its photosphere at an effective temperature of 9,456 K.[6]