| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Leo |
| Right ascension | 09h 23m 47.08737s[1] |
| Declination | +20° 21′ 52.0349″[1] |
| Apparent magnitude (V) | +7.73[2] |
| Characteristics | |
| Spectral type | G0V[2] |
| B−V color index | 0.680±0.012 |
| Astrometry | |
| Radial velocity (Rv) | +49.270±0.0017[3] km/s |
| Proper motion (μ) | RA: −151.265±0.045 mas/yr[1] Dec.: 35.708±0.036 mas/yr[1] |
| Parallax (π) | 29.0635 ± 0.0414 mas[1] |
| Distance | 112.2 ± 0.2 ly (34.41 ± 0.05 pc) |
| Absolute magnitude (MV) | 5.12[4] |
| Details | |
| Mass | 0.962±0.040[5] M☉ |
| Radius | 0.91+0.01 −0.03[6] R☉ |
| Luminosity | 0.838±0.018[7] L☉ |
| Surface gravity (log g) | 4.48[2] cgs |
| Temperature | 5,753[2] K |
| Metallicity [Fe/H] | −0.06±0.03[4] dex |
| Rotation | 15.98 d[7] |
| Rotational velocity (v sin i) | 5.3[2] km/s |
| Age | 1.79+0.30 −0.26[7] Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 81040 is a star in the equatorial constellation of Leo. With an apparent visual magnitude of +7.73[2] it is too dim to be visible to the naked eye but can be viewed with a small telescope. The star is located at a distance of 112 light years from the Sun based on parallax. It is drifting further away with a radial velocity of +49 km/s,[3] having come to within 48 light-years some 527,000 years ago.
GaiaDR3 was invoked but never defined (see the help page).Earle2017 was invoked but never defined (see the help page).Soubiran2018 was invoked but never defined (see the help page).Anderson2012 was invoked but never defined (see the help page).Winn2022 was invoked but never defined (see the help page).Li2021 was invoked but never defined (see the help page).SIMBAD was invoked but never defined (see the help page).