BD-10°3166

BD-10°3166
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Crater
Right ascension 10h 58m 28.7798s
Declination −10° 46′ 13.386″
Apparent magnitude (V) 10.08
Distance218 ± 32.6 ly
(66.8 ± 10.0 pc)
Spectral typeK0V
Other designations
GSC 05503-00946
Database references
SIMBADdata

BD-10°3166 is a K-type main sequence star approximately 218 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. A recent photometric distance measurement gives an approximate distance of 218 light years. Although the estimate is only crude, it is probably good enough to exclude a suggested companion star, LP 731-076, being its true binary star companion.[1]

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[2] orbiting the star.

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.[3]

The BD-10°3166 planetary system[3]
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 — —

See also

References

External links

Coordinates: 10h 58m 28.7798s, −10° 46′ 13.386″


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