lqxhcwq 发表于 2020-3-2 16:02

T2 Y4

本帖最后由 lqxhcwq 于 2020-3-2 16:11 编辑

http://cometchasing.skyhound.com/
https://skyandtelescope.org/observing/comets-to-catch-in-2020/
http://www.aerith.net/comet/weekly/current.html


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