親子觀星會
討論區 => 天文新知 => 主題作者是: peter 於 2017-05-05 08:19:44
主題:
英國可見月掩 Leo 49雙星
作者:
peter
於
2017-05-05 08:19:44
https://astronomynow.com/2017/05/04/moon-causes-double-disappearance/
(https://assets.cdn.astronomynow.com/wp-content/uploads/2017/05/04115713/20170504-occultation_49_leo-zoom.jpg)
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