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SN2021J spectrum at 80 days

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Robin Leadbeater's picture
Last seen: 8 hours 20 min ago
Joined: 05/03/2014 - 00:50
SN2021J spectrum at 80 days

SN2021J has now faded to mag 15.5 (ZTF g) and its close proximity to the bright galaxy core makes taking a spectrum an interesting challenge. By subtracting the galaxy contamination though using a historic spectrum, it was possible to tease out the spectrum of the supernova.