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Discovery of an Apparent Nova in M31

ATel #4364; K. Hornoch (Astronomical Institute, Ondrejov, Czech Republic), J. Vrastil (Astronomical Institute, Charles U., Prague, Czech Republic)
on 9 Sep 2012; 18:26 UT
Credential Certification: Allen W. Shafter (aws@nova.sdsu.edu)

Subjects: Optical, Nova, Transient

Referred to by ATel #: 4368, 9280

We report the discovery of an apparent nova in M31 on a co-added 900-s R-band CCD frame taken on Sep. 8.770 UT with the 0.65-m telescope at Ondrejov.

The new object designated PNV J00424720+4116195 is located at R.A. = 0h42m47s.20, Decl. = +41o16'19".5 (equinox 2000.0), which is 32.4" east and 11.0" north of the center of M31 (see link to discovery image below).

The following R-band magnitudes were obtained using the 0.65-m telescope at Ondrejov:

2012 Sep. 6.813 UT, [19.2; 8.770, 16.3 +/- 0.15.

Discovery image