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美天文學家　發現「寂寞行星」
Oct 10th 2013, 00:45

【施旖婕╱綜合外電報導】美國天文學家昨日表示，在太陽系外發現一個「寂寞行星」，它在太空中獨自漂浮，並無恆星圍繞運轉。

目前這顆系外行星名為「PSO J318.5-22」，距地球僅80光年，質量是木星的6倍。它約在1200萬年前形成，在同輩中被視為行星新生兒。

美國天文學家發現這顆「寂寞行星」。翻自rappler.com

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