数据来源于第谷星表，100光年以外的恒星则采用非常近似的数值。
This is taken from the Tycho catalog and for stars further away than 100 light years or so should be taken as a very approximate figure.
软件将使用图片和星表中最亮的恒星进行匹配。
The software will use the brightest stars in the image and in the star catalogue for the matching routine.
在2010年发表的一篇论文指出，当时只有15个已知的恒星系统，它们的行星都在3个以上(包含3个)。
One paper, released in 2010, noted that, at that time, only 15 systems were known with three or more planets.
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