Independent Discovery of a Probable Nova in M31

ATel #15532; K. Hornoch, H. Kucakova (Astronomical Institute, Ondrejov, Czech Republic)
on 28 Jul 2022; 23:48 UT
Distributed as an Instant Email Notice Novae
Credential Certification: Allen W. Shafter (ashafter@sdsu.edu)

Tweet

We report the independent discovery of a probable nova in M31 on a co-added 480-s R-band CCD frame taken on 2022 Jul. 27.083 UT with the 0.65-m telescope at Ondrejov.

The object was independently discovered on Jul. 26.860 UT by M. Zhang and X. Gao and designated as PNV J00425697+4116333 = AT 2022puk and on Jul. 26.951 UT by A. Valcheva et al. (see ATel #15529). The object was designated by us as M31N 2022-07e and is located at R.A. = 0h42m57s.01, Decl. = +41o16'32".8 (equinox 2000.0), which is 143.0" east and 24.3" north of the center of M31 (see link to discovery image below).

The following R-band magnitudes were obtained using the 0.65-m telescope at Ondrejov:

2022 Jul. 25.039 UT, [20.0; 27.083, 18.4 ± 0.15.

As with all extragalactic novae, follow-up spectroscopic and photometric observations to confirm the nova's nature and determine its spectroscopic class and rate of decline (speed class) are encouraged.

Discovery image