Solidot: 天文学家发现酷似地球的热行星

Solidot

奇客的资讯，重要的东西

天文学家发现酷似地球的热行星
http://solidot.org.feedsportal.com/c/33236/f/556826/s/3322caa9/sc/28/l/0L0Ssolidot0Borg0Cstory0Dsid0F370A43/story01.htm
Oct 31st 2013, 09:15

天文学家首次发现了一颗大小和质量几乎与地球相同的太阳系外行星Kepler-78b，但它不位于宜居区，其表面温度可能高达3100K。Kepler-78b位于世家星座，距离地球400光年，其密度和地球相似，可能有着和地球一样的岩石表面和铁质核心。Kepler-78b质量大约为地球的1.69至1.86倍（两个不同团队根据不同数据的计算结果），它距离母星非常近，公转一周仅8.5小时，其表面温度大约为2300–3100K。This entry passed through the Full-Text RSS service — if this is your content and you're reading it on someone else's site, please read the FAQ at fivefilters.org/content-only/faq.php#publishers. Five Filters recommends: Massacres That Matter - Part 1 - 'Responsibility To Protect' In Egypt, Libya And SyriaMassacres That Matter - Part 2 - The Media Response On Egypt, Libya And SyriaNational demonstration: No attack on Syria - Saturday 31 August, 12 noon, Temple Place, London, UK



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