Discovery of a Probable Nova in M31
ATel #15780; K. Hornoch, H. Kucakova (Astronomical Institute, Ondrejov, Czech Republic), M. Wolf (Astronomical Institute, Charles U., Prague, Czech Republic), A. W. Shafter (SDSU)
on 28 Nov 2022; 05:02 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 660-s R-band CCD frame taken on 2022 Nov. 28.020 UT with the Danish 1.54-m telescope at La Silla.
The object designated PNV J00424466+4116247 is located at R.A. = 0h42m44s.66, Decl. = +41o16'24".7 (equinox 2000.0), which is 3.8" east and 16.2" north of the center of M31 (see link to discovery image below).
The following R-band magnitudes were obtained using the Danish 1.54-m telescope (DK154), the 0.65-m telescope at Ondrejov (D65) and the SDSU's Mount Laguna Observatory (MLO) 40-in reflector:
2020 Nov. 27.018 UT, [19.8 (DK154); 27.125, [20.0 (MLO); 27.703, 18.0 ± 0.25 (D65, prediscovery); 27.746, 17.9 ± 0.25 (D65, prediscovery); 28.020, 17.1 ± 0.1 (DK154).
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.
This work is based on data collected with the Danish 1.54-m telescope at the ESO La Silla Observatory.
Discovery image
