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Independent discovery of an Apparent Nova in M31

ATel #13207; K. Hornoch, H. Kucakova (Astronomical Institute, Ondrejov, Czech Republic)
on 21 Oct 2019; 03:42 UT
Credential Certification: Allen W. Shafter (ashafter@sdsu.edu)

Subjects: Optical, Nova, Transient

Referred to by ATel #: 13228, 13230, 13272

We report the independent discovery of an apparent nova in M31 on a co-added 1440-s R-band CCD frame taken on 2019 Oct. 20.751 UT with the 0.65-m telescope at Ondrejov.

The object was independently discovered by the Zwicky Transient Facility (ZTF) and designated as 2019sxc = ZTF19acgfhfd. The object designated by us as PNV J00430155+4117599 is located at R.A. = 0h43m01s.55, Decl. = +41o17'59".9 (equinox 2000.0), which is 194.2" east and 111.4" 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:

2019 Oct. 18.792 UT, [20.1; 19.785, 19.6 ± 0.4; 19.811, 19.5 ± 0.4; 20.751, 18.0 ± 0.1; 20.765, 18.0 ± 0.15.

Discovery image