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HD 216770

HD 216770 is an 8th magnitude star located approximately 124 light-years away in the constellation of Piscis Austrinus. It is an orange dwarf (spectral type K1 V), and is somewhat dimmer and cooler than our Sun.

In 2003 a planet was announced orbiting it by the Geneva Extrasolar Planet Search Team.

The HD 216770 system
Companion
(in order from star)
Mass Semimajor axis
(AU)
Orbital period
(days)
Eccentricity
b >0.65 MJ 0.46 118.45 ± 0.55 0.37 ± 0.06
c (unconfirmed) >0.1886 MJ 0.102 12.456 0.3887

See also

* HD 10647
* HD 108874
* HD 111232
* HD 142415
* HD 169830
* HD 41004
* HD 65216
* List of extrasolar planets


External links

* "Notes for star HD 216770". The Extrasolar Planets Encyclopaedia. http://exoplanet.eu/star.php?st=HD+216770.
* "HD 216770". Extrasolar Visions. http://www.extrasolar.net/planettour.asp?StarCatId=normal&StarId=209.

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