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Comet 2019 Y4 ATLAS with light pollution on March 22nd 2020


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About this observation
Martin Mobberley
Time of observation
22/03/2020 - 04:43

2019 Y4 was close to two 4th mag stars in UMa last night. As often happens, scattered light from the one just OUTSIDE the field (southeast) caused the problem, with a rainbow fan spreading NW right across the comet!

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