It maybe a supernova? It shows up in the single exposures from 2017-11-25 and 2017-12-14
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Hi. That is not a supernova but a foreground star from our Milky Way galaxy. It is visible in r-band images from 2018 and appears in PanSTARRS images. How do I know? I checked all the PanSTARRS1 exposures and this object is visible in many different years. Supernovae usually last a few weeks to a month, but visibility over multiple years is way too long for a supernova.
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Thank you for clearing it up
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