Discovery of a Probable Nova in M31
ATel #16058; K. Hornoch (Astronomical Institute, Ondrejov, Czech Republic), H. Kucakova (Astronomical Institute, Charles U., Prague, Czech Republic), A. W. Shafter (SDSU)
on 28 May 2023; 15:43 UT
Distributed as an Instant Email Notice Novae
Credential Certification: Allen W. Shafter (ashafter@sdsu.edu)
Subjects: Optical, Nova, Transient
We report the discovery of a probable nova in M31 on a co-added 1170-s R-band CCD frame taken on 2023 May 28.063 UT with the 0.65-m telescope at Ondrejov.
The object designated PNV J00421981+4107048 is located at R.A. = 0h42m19s.81, Decl. = +41o07'04".8 (equinox 2000.0), which is 276.7" west and 543.7" 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 (D65):
Date [UT] | Mag | Err | Filter | Telescope>
2023-05-21.069 | <18.6 | | R | D65
2023-05-28.063 | 18.1 | 0.1 | R | D65
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
