Pre-maximum photometry of the probable nova M31N 2015-06a
ATel #7586; E. Ovcharov, M. Minev, A. Kurtenkov, P. Nedialkov, A. Valcheva (University of Sofia, Bulgaria)
on 3 Jun 2015; 19:43 UT
Credential Certification: Evgeni Ovcharov (evgeni@phys.uni-sofia.bg)
We report optical photometry of the probable nova M31N 2015-06a (ATel#7584). The observations were carried out two days before the discovery using the 50/70 cm Schmidt telescope at NAO Rozhen, Bulgaria. The available magnitudes are:
2015 June 01.040 UT, R=17.79 +/- 0.28
2015 June 02.027 UT, R=17.00 +/- 0.14
2015 June 03.036 UT, R=16.32 +/- 0.08
Furthermore, we report additional photometry for the nova M31N 2015-05b:
2015 June 01.040 UT, R=17.11 +/- 0.04
2015 June 02.027 UT, R=17.09 +/- 0.04
2015 June 03.036 UT, R=17.13 +/- 0.04
