Talk:HD 9446
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Still room for an Earth-like planet[edit]
So I took all the data in this article and crunched the numbers and figured out that the 1.82 Jupiter mass planet receives 236% of the irradiance that Earth does (Venus being about 191%), and the hill sphere radius is only out to roughly 0.71 AU. That means that there still could be a planet at the 100% distance from the star, which in this case is 1.005 AU, where the solar constant is the same as the Earth. 24.79.36.94 (talk) 22:50, 30 January 2015 (UTC)
- In case anyone interested takes it that far, perihelion is 0.69324 AU, the hill sphere then is 0.0577 AU, and the total is 0.751 AU. 24.79.36.94 (talk) 22:50, 30 January 2015 (UTC)