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extragalactic planet
An extragalactic planet, also known as an extragalactic exoplanet, is a planet that is outside the Milky Way.〔Extrasolar Visions, ("Extragalactic Worlds" ) (accessed 1 September 2009)〕 Of all the exoplanets discovered to date, only one is of extragalactic origin. Due to the huge distance of those worlds, they are very hard to detect.
==HIP 13044 b==
A planet with a mass of at least 1.25 times that of Jupiter has been discovered by the European Southern Observatory (ESO) orbiting a star of extragalactic origin, even though the star now finds itself within our own galaxy. The Jupiter-like planet is particularly unusual, as it is orbiting a star nearing the end of its life and could be about to be engulfed by it, giving tantalizing clues about the fate of our own planetary system in the distant future. The star is called HIP 13044 and it lies about 2000 light-years from Earth in the southern constellation of Fornax.〔
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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