HD 73526
HD 73526 is a star in the southern constellation of Vela. With an apparent visual magnitude of +8.99, it is much too faint to be viewed with the naked eye. The star is located at a distance of approximately 316 light-years (97 parsecs) from the Sun based on parallax, and is drifting further away with a radial velocity of +26 km/s. It is a member of the thin disk population.
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Vela |
| Right ascension | 08h 37m 16.48335s |
| Declination | −41° 19′ 08.7904″ |
| Apparent magnitude (V) | +8.99 |
| Characteristics | |
| Evolutionary stage | Main sequence |
| Spectral type | G6 V |
| B−V color index | 0.737±0.005 |
| Variable type | Constant |
| Astrometry | |
| Radial velocity (Rv) | +26.31±0.10 km/s |
| Proper motion (μ) | RA: −60.993 mas/yr Dec.: 159.192 mas/yr |
| Parallax (π) | 10.3311 ± 0.0144 mas |
| Distance | 315.7 ± 0.4 ly (96.8 ± 0.1 pc) |
| Absolute magnitude (MV) | +4.1±0.2 |
| Absolute bolometric magnitude (Mbol) | +3.7±0.2 |
| Details | |
| Mass | 1.01±0.04 1.14±0.15 M☉ |
| Radius | 1.53±0.03 R☉ |
| Luminosity | 2.14+0.68 −0.52 L☉ |
| Surface gravity (log g) | 4.13±0.06 cgs |
| Temperature | 5,564±16 K |
| Metallicity [Fe/H] | +0.23±0.02 dex |
| Rotational velocity (v sin i) | 1.69±0.26 km/s |
| Age | 9.59±1.00 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
The stellar classification of HD 73526 is G6 V, indicating this is a G-type main-sequence star that, like the Sun, is generating energy through core hydrogen fusion. Based on its properties, it may be starting to evolve off the main sequence. This star has slightly more mass than the Sun and a 53% greater radius. The abundance of iron in its atmosphere suggests the star's metallicity – what astronomers term the abundance of elements with higher atomic number than helium – is 70% greater than in the Sun. It is a much older star with an estimated age of nearly ten billion years, and is spinning slowly with a projected rotational velocity of 1.7 km/s. The star is radiating more than double the luminosity of the Sun from its photosphere at an effective temperature of 5,564 K.