Solidot: 天文学家发现形似太阳系的行星系

Solidot

奇客的资讯，重要的东西

天文学家发现形似太阳系的行星系
http://solidot.org.feedsportal.com/c/33236/f/556826/s/33176860/sc/21/l/0L0Ssolidot0Borg0Cstory0Dsid0F370A32/story01.htm
Oct 30th 2013, 10:36

德国航空航天中心的一组天文学家观察到了至今为止行星数最多的系外行星系。太阳有8颗行星，而距离地球约2500光年的恒星KOI-351有7颗行星。行星系的结构与太阳系类似：离母星较近轨道上都运行着较小的岩石行星，较远轨道上则是巨大的气体行星。该行星系中有3颗行星此前已被发现，它们的公转周期分别是331天、211天和60天，与地球、金星和水星公转周期类似。最外围的行星距离母星约1.5亿公里，类似地球与太阳的距离。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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