Discovery of Two Apparent Novae in M31

ATel #9638; K. Hornoch (Astronomical Institute, Ondrejov, Czech Republic), H. Kucakova (Astronomical Institute, Charles U., Prague, Czech Republic)
on 17 Oct 2016; 00:20 UT
Credential Certification: Allen W. Shafter (ashafter@mail.sdsu.edu)

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We report the discovery of two apparent novae in M31 on a co-added 900-s R-band CCD frame taken on 2016 Oct. 16.791 UT with the 0.65-m telescope at Ondrejov.

Designations, positions, and offsets of the new objects from the M31 center are summarized in the following table:

 
  TOCP designation    CBAT designation  R.A. (J2000)  Dec. (J2000)  Offset R.A.  Offset Dec. 
 
PNV J00425245+4118412  M31N 2016-10b?   00 42 52.45   +41 18 41.2     91.6" E     152.7" N 
PNV J00424603+4116114  M31N 2016-10c?   00 42 46.03   +41 16 11.4     19.2" E       2.9" N 

The following R-band magnitudes were obtained for the PNV J00425245+4118412 using the 0.65-m telescope at Ondrejov:

2016 Oct. 9.782 UT, [19.8; 16.791, 16.87 ± 0.09; 16.806, 16.78 ± 0.09.

The following R-band magnitudes were obtained for the PNV J00424603+4116114:

2016 Oct. 9.782 UT, [18.9; 16.791, 16.6 ± 0.2; 16.806, 16.7 ± 0.2.

Discovery image