Discovery of a Probable Nova in M31
ATel #15512; K. Hornoch, H. Kucakova (Astronomical Institute, Ondrejov, Czech Republic)
on 13 Jul 2022; 18:52 UT
Distributed as an Instant Email Notice Novae
Credential Certification: Allen W. Shafter (ashafter@sdsu.edu)
Subjects: Optical, Nova, Transient
Referred to by ATel #: 15520
We report the discovery of a probable nova in M31 caught in early stage of eruption on a co-added 1620-s R-band CCD frame taken on 2022 Jul. 12.937 UT with the 0.65-m telescope at Ondrejov.
The object designated PNV J00422940+4115430 is located at R.A. = 0h42m29s.40, Decl. = +41o15'43".0 (equinox 2000.0), which is 168.3" west and 25.5" south 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. 12.029 UT, [20.0; 12.937, 18.0 ± 0.1; 13.012, 17.83 ± 0.04.
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
