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Multicolor Optical Photometry of Luminous Novae M31N 2015-09c and M31N 2015-10a

ATel #8144; K. Hornoch (Astronomical Institute, Ondrejov, Czech Republic), H. Kucakova, M. Wolf, J. Vrastil (Astronomical Institute, Charles U., Prague, Czech Republic), A. W. Shafter, D. Dabney, R. DeWitt, A. Nandho (SDSU)
on 9 Oct 2015; 16:22 UT
Credential Certification: Allen W. Shafter (ashafter@mail.sdsu.edu)

Subjects: Optical, Nova, Transient

Referred to by ATel #: 8145, 9408

We report additional multicolor photometry of the luminous novae M31N 2015-09c (PNV J00432114+4124597; see ATel #8108, #8109) and M31N 2015-10a (PNV J00415937+4117026; see CBAT TOCP, ATel #8134, #8141) acquired with the 0.65-m telescope at Ondrejov and Mount Laguna Observatory's 40-inch reflector.

 
 
M31N 2015-09c 
 
   Date UT        Band     Magnitude      Observatory 
 
2015 09 30.813     B     15.78 ± 0.10      Ondrejov 
2015 10 01.128     B     16.3 ± 0.1        Ondrejov 
2015 10 01.766     B     16.6 ± 0.15       Ondrejov 
2015 10 02.125     B     16.4 ± 0.15       Ondrejov 
2015 10 02.944     B     16.9 ± 0.15       Ondrejov 
2015 10 04.800     B     17.0 ± 0.1        Ondrejov 
2015 10 05.767     B     17.30 ± 0.10      Ondrejov 
2015 10 08.174     B     17.62 ± 0.06         MLO 
 
2015 09 30.814     V     15.19 ± 0.07      Ondrejov 
2015 10 01.129     V     15.85 ± 0.08      Ondrejov 
2015 10 01.758     V     16.27 ± 0.10      Ondrejov 
2015 10 02.133     V     16.08 ± 0.09      Ondrejov 
2015 10 02.931     V     16.76 ± 0.08      Ondrejov 
2015 10 04.790     V     16.89 ± 0.10      Ondrejov 
2015 10 05.755     V     17.26 ± 0.09      Ondrejov 
2015 10 08.180     V     17.64 ± 0.05         MLO 
 
2015 09 30.815     R     15.02 ± 0.07      Ondrejov 
2015 10 01.130     R     15.46 ± 0.09      Ondrejov 
2015 10 01.750     R     15.98 ± 0.09      Ondrejov 
2015 10 02.117     R     15.71 ± 0.07      Ondrejov 
2015 10 02.909     R     16.56 ± 0.08      Ondrejov 
2015 10 04.055     R     16.18 ± 0.08      Ondrejov 
2015 10 04.774     R     16.52 ± 0.10      Ondrejov 
2015 10 05.743     R     16.97 ± 0.07      Ondrejov 
2015 10 08.185     R     17.02 ± 0.06         MLO 
 
2015 09 30.816     I     14.94 ± 0.08      Ondrejov 
2015 10 01.131     I     15.27 ± 0.08      Ondrejov 
2015 10 01.743     I     15.57 ± 0.09      Ondrejov 
2015 10 02.140     I     15.42 ± 0.09      Ondrejov 
2015 10 02.920     I     16.1  ± 0.1       Ondrejov 
2015 10 04.784     I     16.16 ± 0.10      Ondrejov 
2015 10 05.778     I     16.61 ± 0.08      Ondrejov 
 
 
M31N 2015-10a 
 
   Date UT        Band     Magnitude      Observatory 
 
2015 10 08.167     B     16.89 ± 0.08         MLO 
 
2015 10 08.159     V     16.44 ± 0.05         MLO 
 
2015 10 08.153     R     15.94 ± 0.07         MLO