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Independent Discovery of a Probable Nova in M31

ATel #10588; K. Hornoch, P. Fatka (Astronomical Institute, Ondrejov, Czech Republic)
on 21 Jul 2017; 09:30 UT
Credential Certification: Steven Williams (scw@astro.ljmu.ac.uk)

Subjects: Optical, Nova, Transient

Referred to by ATel #: 10596

We report the independent discovery of another probable nova in M31 on a co-added 450-s R-band CCD frame taken on 2017 Jul. 19.965 UT with the 0.65-m telescope at Ondrejov.

The object designated PNV J00431504+4120506 was first announced and designated AT2017fog by Z. Xu and X. Gao (see here) and is located at R.A. = 0h43m15s.04, Decl. = +41o20'50".6 (equinox 2000.0), which is 346.1" east and 282.1" 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 Jul. 5.060 UT, [21.1; 7.917, [19.7; 19.965, 18.1 ± 0.15.

We thank P. Kusnirak for getting images on Jul. 5.060 UT and H. Kucakova on Jul. 7.917 UT.

Discovery image