只需一步，快速开始
“司南”告诉我们几千年来地轴一直指向北极星 http://idea.cas.cn/viewdoc.action?docid=3764
|小黑屋|手机版|Archiver|Astronomy Forum of Starry Sky ( 浙ICP备16020121号 )
GMT+8, 2025-4-11 15:05 , Processed in 0.086949 second(s), 23 queries .
Powered by Discuz! X3.2
© 2001-2013 Comsenz Inc.
|小黑屋|手机版|Archiver|Astronomy Forum of Starry Sky
( 浙ICP备16020121号 )
组图打开中，请稍候......
收藏