10 Tauri
Star in the constellation Taurus
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10 Tauri is a single[9] star in the zodiac constellation of Taurus. It can be seen with the naked eye, having an apparent visual magnitude of 4.29.[2] An annual parallax shift of 71.62[10] mas provides a distance estimate of 45.5 light years. It is moving further from the Sun with a radial velocity of +28 km/s[4] and has a relatively high proper motion.[2]
 | |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Taurus |
| Right ascension | 03h 36m 52.38s[1] |
| Declination | +00° 24′ 06.0″[1] |
| Apparent magnitude (V) | 4.29[2] |
| Characteristics | |
| Evolutionary stage | subgiant[1] |
| Spectral type | F9IV-V[3] |
| U−B color index | +0.08[2] |
| B−V color index | +0.58[2] |
| Astrometry | |
| Radial velocity (Rv) | +27.8±0.5[4] km/s |
| Proper motion (μ) | RA: −232.563[1] mas/yr Dec.: −481.472[1] mas/yr |
| Parallax (π) | 71.8370±0.01503 mas[1] |
| Distance | 45.402 ± 0.009 ly (13.920 ± 0.003 pc) |
| Absolute magnitude (MV) | +3.60[5] |
| Details | |
| Mass | 1.139±0.016[6] M☉ |
| Radius | 1.622±0.024[6] R☉ |
| Luminosity | 3.042±0.042[6] L☉ |
| Surface gravity (log g) | 4.06±0.03[7] cgs |
| Temperature | 6,000±59[7] K |
| Metallicity [Fe/H] | −0.08±0.01[7] dex |
| Rotation | 17.6 days[8] |
| Rotational velocity (v sin i) | 2.4[5] km/s |
| Age | 5.7±0.4[6] Gyr |
| Other designations | |
| 10 Tau, BD−00°572, FK5 1101, GJ 147, HD 22484, HIP 16852, HR 1101, SAO 111292, LHS 1569, LTT 11194 | |
| Database references | |
| SIMBAD | data |
The star has a stellar classification of F9IV-V,[3] indicating that it is an F-type star between main sequence and subgiant. Modles indicate that it is a subgiant,[1] having exhausted its core hydrogen and evolved away from the main sequence. It is around 5.7[6] billion years old with a rotation period of 17.6 days.[8] The star has 1.14 times the mass of the Sun and 1.6 times the Sun's radius. It is radiating three[6] times the Sun's luminosity from its photosphere at an effective temperature of 6,000 K.[7]
A debris disk has been identified orbiting 10 Tauri, based on excess infrared radiation detected by IRAS/ISO.[11]
10 Tauri was the brightest star in the obsolete constellation Psalterium Georgii (Harpa Georgii).[12]