Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  Solar system body or event
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C/2019 Y4 ATLAS and UGC 4305, Steed Yu
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C/2019 Y4 ATLAS and UGC 4305

Getting plate-solving status, please wait...
C/2019 Y4 ATLAS and UGC 4305, Steed Yu
Powered byPixInsight

C/2019 Y4 ATLAS and UGC 4305

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Description

上周五的C/2019 Y4 ATLAS彗星,3月27日北京时间21时-24时(1300-1600 UT)摄于北京门头沟清水镇附近。

之所以这么构图,是为了把彗星和UGC 4305框在一起。这是个不规则矮星系,距离地球约980万光年。虽然隶属于M81星系群,它却是少数不受邻近星系引力影响的星系之一。天文学家研究过这个星系里的恒星形成过程,据说跟开香槟时触发的连锁反应类似。

只可惜,漏算了这颗彗星的尾巴…… 才几天不见,彗尾已经这么长了,一直拖到了视场之外,没有拍全。周六本想补拍,然而天气不好,也只能作罢了。等接下来的大月亮过去,不知道它会长成什么模样呢?

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C/2019 Y4 ATLAS and UGC 4305, Steed Yu

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