HD 59686 [SEP] constellation
HD 59686
HD 59686 is a 5th magnitude star approximately 316 light years away in the constellation Gemini.
Star.
It is an orange giant meaning it has ceased fusing hydrogen in its core and on its way to becoming a red giant. The stellar radius is very large (11.6 times that of our Sun).
Planetary system.
In November 2003, the planet was announced orbiting the giant star by Mitchell which he used Doppler spectrometer to look for effects on the star caused by the gravitational tug of
91 Aquarii b
91 Aquarii b, also known as HD 219449 b, is an extrasolar planet orbiting in the 91 Aquarii system approximately 148 light-years away in the constellation of Aquarius. It orbits at the average distance of 105 Gm from its star, which is slightly closer than Venus is to the sun (108 gm). The planet takes half an Earth year to orbit around the star in a very circular orbit with eccentricity less than 0.053.
See also.
- HD 59686 b
- Iota