32 Tauri
| Observation data Epoch J2000.0 Equinox J2000.0 |
|
|---|---|
| Constellation | Taurus |
| Right ascension | 03h 56m 52.07680s[1] |
| Declination | +22° 28′ 40.6993″[1] |
| Apparent magnitude (V) | 5.64[2] |
| Characteristics | |
| Spectral type | F2IV[3] |
| U−B color index | +0.00[2] |
| B−V color index | +0.36[2] |
| Astrometry | |
| Radial velocity (Rv) | +31.90[4] km/s |
| Proper motion (μ) | RA: +69.82[1] mas/yr Dec.: −114.36[1] mas/yr |
| Parallax (π) | 23.62 ± 0.39[1] mas |
| Distance | 138 ± 2 ly (42.3 ± 0.7 pc) |
| Details | |
| Mass | 1.47[5] M☉ |
| Luminosity | 8[6] L☉ |
| Temperature | 6,857[6] K |
| Metallicity [Fe/H] | −0.27[5] dex |
| Rotational velocity (v sin i) | 22[7] km/s |
| Age | 2.1[5] Gyr |
| Other designations | |
32 Tauri is the Flamsteed designation for a solitary[9] star in the zodiac constellation of Taurus. It has a visual magnitude of 5.64,[2] making it visible to the naked eye from suburban skies (according to the Bortle scale). The position of this star near the ecliptic plane means that it is subject to occultations by the Moon.[10] Parallax measurements with the Hipparcos spacecraft put it at a distance of roughly 138 light-years (42.3 parsecs) from the Sun.[1]
The spectrum of this star matches a stellar classification of F2IV,[3] with the luminosity class of IV indicating that this star has reached the subgiant stage and is in the process of evolving into a giant star. It has 47%[5] more mass than the Sun, but eight times the Sun's luminosity[6] and about half the Sun's age.[5] The abundance of elements other than hydrogen and helium is lower in this star compared to the Sun.[5] The effective temperature of the star's outer atmosphere is 6,857 K,[6] giving it the white-hued glow of an F-type star.[11]
References
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