Astronomy:BD−10 3166
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Crater |
| Right ascension | 10h 58m 28.7825s[1] |
| Declination | −10° 46′ 13.396″[1] |
| Apparent magnitude (V) | 10.02[2] |
| Characteristics | |
| Spectral type | K3V[3] |
| B−V color index | 0.85[2] |
| Astrometry | |
| Radial velocity (Rv) | 26.4±2[2] km/s |
| Proper motion (μ) | RA: −183.157±1.580[1] mas/yr Dec.: −8.065±0.553[1] mas/yr |
| Parallax (π) | 12.17 ± 0.45[1] mas |
| Distance | 268 ± 10 ly (82 ± 3 pc) |
| Details[2] | |
| Mass | 1.1±0.1 M☉ |
| Radius | 1.71 R☉ |
| Surface gravity (log g) | 4.4 cgs |
| Temperature | 5400 K |
| Metallicity [Fe/H] | 0.50 dex |
| Other designations | |
GSC 05503-00946[3] | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
BD−10 3166 is a K-type main sequence star approximately 268 light-years away in the constellation of Crater. It was inconspicuous enough not be included in the Draper catalog (HD). The Hipparcos satellite also did not study it, so its true distance is poorly known. The distance measured by the Gaia spacecraft of 268 light years rules out a suggested companion star, LP 731-076, being its true binary star companion.[4][1] It also has a similar radius to Sirius A
Stellar characteristics
The star is very enriched with metals, being about three times as metal-rich as the Sun. Planets are common around such stars, and BD-10°3166 is not an exception. In 2000, the California and Carnegie Planet Search team discovered an extrasolar planet orbiting the star.[2]
Planetary system
In 2000, the California and Carnegie Planet Search discovered a hot Jupiter-type extrasolar planet that has a minimum mass less than half that of Jupiter's, and which takes only 3.49 days to revolve around BD-10°3166.[5]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | >0.458 ± 0.039 MJ | 0.0452 ± 0.0026 | 3.48777 ± 0.00011 | 0.019 ± 0.023 | — | 1.03 RJ |
See also
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 Brown, A. G. A et al. (2016). "Gaia Data Release 1. Summary of the astrometric, photometric, and survey properties". Astronomy and Astrophysics 595: A2. doi:10.1051/0004-6361/201629512. Bibcode: 2016A&A...595A...2G. https://www.aanda.org/articles/aa/full_html/2016/11/aa29512-16/aa29512-16.html.Gaia Data Release 1 catalog entry
- ↑ 2.0 2.1 2.2 2.3 2.4 Butler, R. Paul et al. (2000). "Planetary Companions to the Metal-rich Stars BD -10°3166 and HD 52265". The Astrophysical Journal 545 (1): 504–511. doi:10.1086/317796. Bibcode: 2000ApJ...545..504B.
- ↑ 3.0 3.1 "BD-10 3166". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=BD-10+3166.
- ↑ Raghavan, Deepak et al. (2006). "Two Suns in The Sky: Stellar Multiplicity in Exoplanet Systems". The Astrophysical Journal 646 (1): 523–542. doi:10.1086/504823. Bibcode: 2006ApJ...646..523R.
- ↑ 5.0 5.1 Butler, R. P. et al. (2006). "Catalog of Nearby Exoplanets". The Astrophysical Journal 646 (1): 505–522. doi:10.1086/504701. Bibcode: 2006ApJ...646..505B.
External links
- "Notes for star BD-10 3166". The Extrasolar Planets Encyclopaedia. Archived from the original on 3 August 2008. https://web.archive.org/web/20080803213600/http://exoplanet.eu/star.php?st=BD-10+3166. Retrieved 2008-08-16.
Coordinates: 
10h 58m 28.7798s, −10° 46′ 13.386″
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