Supernova SN 2020nlb in Messier 85 nine months after its discovery – 30 Mar. 2021

Nine months after its discovery, we observed supernova SN 2020nlb in Messier 85 again: of course, it continues to fade. We also updated our lightcurve.

Supernova SN 2020nlb in Messier 85: an image - 30 Mar. 2021.

Supernova SN 2020nlb in Messier 85: an image – 30 Mar. 2021.

The image above comes from the average of five, 180-seconds exposures, unfiltered, remotely taken with the “Elena” (PlaneWave 17″+Paramount ME+SBIG STL-6303E) robotic unit available as part of the Virtual Telescope Project. The supernova candidate is indicated by an arrow, in the upper left inset.

Two months after our previous observations, we’ve found SN 2020nlb at mag. 18.5 (unfiltered, R-mags for the reference stars from the Gaia DR2 star catalogue). We closely monitored this supernova since its discovery (25 June) with continued follow-up. We also updated its lightcurve, please find our SN 2020nlb photometry below.

SN 2020nlb: lightcurve 25/06/2020-30/03/2021.

SN 2020nlb: lightcurve 25/06/2020-30/03/2021.

Those are unfiltered magnitudes (R-mags for the reference stars from the Gaia DR1/DR2 star catalogues).

Of course, we plan further follow-up of this object while it will be visible.

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