Science Fair Project Encyclopedia
Categories: Extrasolar planets | HD and HDE objects | HIP objects | Orange dwarfs | Piscis Austrinus constellation
HD 216770
HD 216770 is an 8th magnitude star located 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 .
HD 216770 b
HD 216770 b is an extrasolar planet orbiting the star HD 216770. It has a mass about two thirds that of Jupiter, largest planet in our Solar system. But unlike the gas giants in the Solar system, it orbits in a very eccentric orbit around the star. The mean distance from the star is slightly larger than Mercury's, and it completes one orbit around the star in every 118 days.
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