HD 17156 b [SEP] constellation
HD 17156 b
HD 17156 b is an extrasolar planet approximately 255 light-years away in the constellation of Cassiopeia. The planet was discovered orbiting the yellow subgiant star HD 17156 in April 2007. The planet is classified as a relatively cool hot Jupiter planet slightly smaller than Jupiter but slightly larger than Saturn in a so-called "torched orbit". This highly-eccentric three-week orbit takes it approximately 0.0523 AU of the star at periastron before swinging out to approximately 0.2665 AU at apastron. Its eccentricity is about
HD 170469
HD 170469 is a yellow subgiant star located approximately 212 light-years away in the constellation Ophiuchus. It has apparent magnitude +8.21 and it is 211.91 ly away.
In 2007, a planet was discovered by the N2K Consortium, led by principal investigators Debra Fischer and Gregory P. Laughlin.
See also.
- HD 125612
- HD 231701
- HD 17156
- HD 11506
- List of extrasolar planets