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NGC4631 Supernova

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NGC4631 2021-02-04  m / 9.8,  Distance / 30 million light-years
A barred spiral galaxy facing right。 It looks like a whale or a herring, but to me it looks like a herring.
Seeing condition was bad and the star image became large. You can see a small nebula in the distance on the lower right side!
(Addition)
Supernova AT2021biy in NGC4631
It is T2021biy discovered on January 29th. I noticed and edited the image again

I’ve changed. The brightness is 16th magnitude.
 
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