HD 221287 b [SEP] constellation
HD 221287 b
HD 221287 b is an exoplanet approximately 173 light years away in the constellation of Tucana. This planet has mass 3.12 M (992 M) and orbits in a habitable zone at 1.25 AUs (6.06 μpc) from the star, taking 1.25 years to orbit at 29.9 km/s around the star. Naef discovered this planet in early 2007 by using HARPS spectrograph located in Chile.
Based on a probable 10 fraction of the planet mass as a satellite, the planet can have a Mars-sized
HD 100777 b
HD 100777 b is an extrasolar planet located approximately 172 light-years away in the constellation of Leo, orbiting the star HD 100777. This is a 1.17 M planet taking 33.15 Ms to orbit at 154.1 Gm or 4.99 μpc from the star at 36% eccentricity. The velocity of the orbit is 29.3 km/s. Dominique Naef discovered this planet in March 2007 by using HARPS spectrograph located in Chile.
See also.
- HD 190647 b
- HD 221287 b