Nova M31 2015-05b has increased its brightness
ATel #7564; E. Ovcharov, M. Minev, A. Kurtenkov, P. Nedialkov, A. Valcheva (University of Sofia, Bulgaria)
on 26 May 2015; 11:49 UT
Credential Certification: Evgeni Ovcharov (evgeni@phys.uni-sofia.bg)
We report an increased optical brightness of Nova M31 2015-05b. Using the 50/70 cm Schmidt telescope at NAO Rozhen, Bulgaria, we obtained 3 consecutive 300s frames on May 25 in R-band filter. We performed aperture photometry after median combination of the frames. The available magnitude is 1.5 mag brighter than 3 days before (ATel #7554):
2015 May 25.035 UT, R=16.17 +/- 0.03
We strongly encourage further spectral observations.
