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HD 122430 b
HD 122430 b is a giant planet orbiting around the giant star HD 122430. It has a mass at least 3.71 times that of Jupiter. This planet located at a distance of 1.02 astronomical units away from its star, which is very similar to the Earth’s distance from the Sun. Despite of this, the higher luminosity of the star implies it is heated much more strongly than the Earth is. Its orbit is highly eccentric, around 68%. At periastron, the orbital distance from its parent star is 0.33 AU. At apastron, the distance is 1.71 AU. If this planet were in our own solar system, its orbit would range from just within Mercury’s orbit to just beyond Mars’s orbit.
In Spain, Setiawan discovered this planet in 2003, using the radial velocity method.
==See also==
* HD 47536 b
* HD 47536 c
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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