Astronomy:Gliese 167
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Short description: Star in the constellation Dorado
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Dorado |
| Right ascension | 04h 15m 56.9017s[1] |
| Declination | −53° 18′ 35.306″[1] |
| Apparent magnitude (V) | 7.634[2] |
| Characteristics | |
| Spectral type | K4.5 V(k)[2] |
| U−B color index | +1.084[2] |
| B−V color index | +1.125[2] |
| V−R color index | +0.667[2] |
| Astrometry | |
| Radial velocity (Rv) | −23.40 ± 0.3[3] km/s |
| Proper motion (μ) | RA: 784.67[4] mas/yr Dec.: 396.69[4] mas/yr |
| Parallax (π) | 76.80 ± 0.22[1] mas |
| Distance | 42.5 ± 0.1 ly (13.02 ± 0.04 pc) |
| Details | |
| Mass | 0.736[5] M☉ |
| Radius | 0.71[5] R☉ |
| Surface gravity (log g) | 4.63[5] cgs |
| Temperature | 4726.6[6] K |
| Metallicity [Fe/H] | −0.15[6] dex |
| Age | 2.04[5] Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
| ARICNS | data |
Gliese 167 is a star in the constellation Dorado. It has an apparent magnitude of 7.634.[2] Based on parallax measurements by Gaia, the star is known to be located 42.5 light-years (13.02 parsecs) away.[1]
The star is a K-type main-sequence star.[2] It has 73.6% of the mass of the Sun, and is 71% as wide.[5] It is also cooler than the Sun with a surface temperature of about 4,700 K.[6]
References
- ↑ 1.0 1.1 1.2 1.3 Gaia Collaboration (2016). "Gaia Data Release 1". Astronomy & Astrophysics 595: A2. doi:10.1051/0004-6361/201629512. Bibcode: 2016A&A...595A...2G.
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 Koen, C.; Kilkenny, D.; van Wyk, F.; Marang, F. (2010). "UBV(RI)C JHK observations of Hipparcos-selected nearby stars". Monthly Notices of the Royal Astronomical Society 403 (4): 1949–1968. doi:10.1111/j.1365-2966.2009.16182.x. Bibcode: 2010MNRAS.403.1949K.
- ↑ Gontcharov, G. A. (2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters 32 (11): 759–771. doi:10.1134/S1063773706110065. Bibcode: 2006AstL...32..759G.
- ↑ 4.0 4.1 van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics 474 (2): 653–664. doi:10.1051/0004-6361:20078357. Bibcode: 2007A&A...474..653V.
- ↑ 5.0 5.1 5.2 5.3 5.4 Takeda, G. (2007). "Stellar parameters of nearby cool stars. II. Physical properties of ~1000 cool stars from the SPOCS catalog". Astrophysical Journal Supplement Series 168: 297–318. doi:10.1086/509763. Bibcode: 2007ApJS..168..297T.
- ↑ 6.0 6.1 6.2 Mortier, A. et al. (2013). "On the functional form of the metallicity-giant planet correlation". Astronomy & Astrophysics 551: A112. doi:10.1051/0004-6361/201220707. Bibcode: 2013A&A...551A.112M.
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