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Discovery of an Apparent Nova in M31

ATel #10317; K. Hornoch (Astronomical Institute, Ondrejov, Czech Republic), H. Kucakova (Astronomical Institute, Charles U., Prague, Czech Republic)
on 24 Apr 2017; 10:44 UT
Credential Certification: Martin Henze (henze@ice.cat)

Subjects: Optical, Nova, Transient

Referred to by ATel #: 10451

Subjects: Optical, Nova, Transient We report the discovery of an apparent nova in M31 on a co-added 990-s R-band CCD frame taken on 2017 Apr. 24.108 UT with the 0.65-m telescope at Ondrejov.

The object designated PNV J00424610+4118390 is located at R.A. = 0h42m46s.10, Decl. = +41o18'39".0 (equinox 2000.0), which is 20.0" east and 150.5" 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:

2017 Apr. 10.133, [19.3; 24.108, 16.3 ± 0.1.

Discovery image