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PNV J00432114+4124597 - A Probable Luminous Nova in M31

ATel #8108; K. Hornoch (Astronomical Institute, Ondrejov, Czech Republic), H. Kucakova, P. Zasche and J. Vrastil (Astronomical Institute, Charles U., Prague, Czech Republic)
on 30 Sep 2015; 21:46 UT
Credential Certification: Allen W. Shafter (ashafter@mail.sdsu.edu)

Subjects: Optical, Nova, Transient

Referred to by ATel #: 8109, 8144, 8145, 9411

Additional photometry of the probable nova in M31 designated J00432114+4124597 (ATel #8074) was obtained with the 0.65-m telescope at Ondrejov yielding the following magnitudes:

2015 Sep. 20.954 UT, R = 18.8 ± 0.15; 21.783, R = 18.0 ± 0.1; 24.879, R = 16.9 ± 0.1; 29.001, R = 15.46 ± 0.09; 29.783, R = 14.26 ± 0.06; 29.861, B = 14.53 ± 0.08; 29.862, V = 14.44 ± 0.06; 29.863, R = 14.35 ± 0.07; 29.864, I = 14.42 ± 0.06; 29.996, B = 14.71 ± 0.09; 29.997, V = 14.56 ± 0.08; 29.998, R = 14.48 ± 0.07; 30.000, I = 14.61 ± 0.07.

The value R = 14.26 corresponds to absolute mag MR = -10.2 (adopting a distance modulus μ = 24.46 for M31) which puts the object in a group of luminous novae.

Additional observations of this luminous nova candidate are strongly encouraged.