Gliese 167
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]
Observation data Epoch J2000 Equinox J2000 | |
---|---|
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 |
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
- Gaia Collaboration (2016). "Gaia Data Release 1". Astronomy & Astrophysics. 595: A2. arXiv:1609.04172. Bibcode:2016A&A...595A...2G. doi:10.1051/0004-6361/201629512.
- 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. Bibcode:2010MNRAS.403.1949K. doi:10.1111/j.1365-2966.2009.16182.x.
- Gontcharov, G. A. (2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759–771. arXiv:1606.08053. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065.
- van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.
- Takeda, G.; et al. (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. arXiv:astro-ph/0607235. Bibcode:2007ApJS..168..297T. doi:10.1086/509763.
- Mortier, A.; et al. (2013). "On the functional form of the metallicity-giant planet correlation". Astronomy & Astrophysics. 551: A112. arXiv:1302.1851. Bibcode:2013A&A...551A.112M. doi:10.1051/0004-6361/201220707.
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