Blush

https://www.legacysurvey.org//viewer/?ra=68.3208&dec=-65.8927&layer=ls-dr9&zoom=16

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No supernova to me because it’s visible in all exposures taken from various years. I say star. Most SNe last a few months and not a few years long

I only see it in Z band. Only one Z showing. Where else are you viewing it?