Comet or Not?
Nick James makes a valid point, we need to see other images in the field to compare with to help identification. One very enlarged image of a blob proves nothing.
As an experiment take a look at the image below and see what you think this object is (shown by green tick marks). The only information is that it is moving against the sky background but in this case other stars are visible so their shape and structure can be compared. And optical effects and background objects can be ruled out.
I’ll give it’s rather obscure ID in a few days. (It’s NOT 3I/ATLAS…).
Mike.
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This reply was modified 6 hours, 46 minutes ago by
Mike Harlow.