H-alpha observations of AT2020aarv nova candidate in M81
Abstract
We report optical R-band and H-alpha observations of the M81 transient AT2020aarv discovered on 2020/11/21.962 by Xingming Observatory Sky Survey (XOSS). The observations were performed with the FoReRo2 focal reducer at the 2m RCC telescope at NAO Rozhen, Bulgaria on 2020 Nov 23.126 UT in R-band and 2020 Nov 23.142 UT in H-alpha (FWHM of 3 nm). For photometric calibration of the R and H-alpha (AB system) magnitudes we used standard non emission stars from Stetson photometric standard stars.
- Publication:
-
The Astronomer's Telegram
- Pub Date:
- November 2020
- Bibcode:
- 2020ATel14221....1V
- Keywords:
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- Nova;
- Transient