HD 216770
Star HD 216770 |
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AladinLite | |||||||||||||
Observation dates equinox : J2000.0 , epoch : J2000.0 |
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Constellation | Southern fish | ||||||||||||
Right ascension | 22 h 55 m 53.71 s | ||||||||||||
declination | -26 ° 39 ′ 31.5 ″ | ||||||||||||
Apparent brightness | 8.1 likes | ||||||||||||
Typing | |||||||||||||
Known exoplanets | 1 | ||||||||||||
B − V color index | +0.82 | ||||||||||||
Astrometry | |||||||||||||
Radial velocity | (+30.7 ± 0.1) km / s | ||||||||||||
parallax | (28.11 ± 0.79) mas | ||||||||||||
distance | approx. 120 ly approx. 36 pc |
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Visual absolute brightness M vis | +5.2 mag | ||||||||||||
Physical Properties | |||||||||||||
Other names and catalog entries |
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HD 216770 is a star which is in almost 40 Parsecs distance in the constellation Piscis Austrinus located and by a Exoplaneten is encircled.
Exoplanet
The discovery of the planetary companion HD 216770 b was made by Mayor et al. using the radial velocity method. The extrasolar planet has an orbital period of just over 118 days and a minimum mass of 0.65 Jupiter masses. Its orbit has a semi-major axis of 0.46 astronomical units and an eccentricity of 0.37.