三角视差法 has been the classic methode to measure

三角视差法 has been the classic methode to measure

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送交者: sohu 于 2009-03-25, 15:44:01:

回答: 这就是直接三角视差法嘛由刚柔于 2009-03-25, 15:32:10:

the distance to a star (including the sun) that is not too far away

你说的那是以地球公转的直径为基线测的附近恒星周年视差 - 刚柔 (55 bytes) 2009-03-25, 15:53:31 (309101)
- so you use distance on earth measure to sun - sohu (211 bytes) 2009-03-25, 15:59:00 (309105)