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主題: 年輕恆星 PDS 110 =HD 290380 可能有行星有環 作者: peter 於 2017-06-07 06:08:55 DS 110 =HD 290380, IRAS 05209-0107 and 2MASS J05233100-0104237
獵戶 OB1a 星協 http://www.sci-news.com/astronomy/ringed-gas-giant-young-star-pds-110-04908.html (http://cdn.sci-news.com/images/2017/05/image_4908-PDS-110b.jpg) Artist’s impression of the giant exoplanet orbiting the star PDS 110. The planet, PDS 110b, has an estimated mass about 50 times that of Jupiter and is encircled by a ring of dust. Image credit: University of Warwick. Periodic Eclipses of the Young Star PDS 110 Discovered with WASP ... https://arxiv.org/pdf/1705.10346翻譯這個網頁 由 HP Osborn 著作 - 2017 WIKI https://en.wikipedia.org/wiki/PDS_110 好像 2008 Nov 2011 Jan 都發現 transi 一說行星木星質量 1.8~70 可能棕矮星, 還有個半徑0.3AU 環 , 離母星 2AU , 掩星 808天中會有 25天光度掉 30% 多 下次發生在 2017 9月 先前是說 J1407 http://familystar.org.tw/index.php?option=com_smf&Itemid=45&topic=23661.0 |