Discovery of an Apparent Nova in M31
ATel #10476; K. Hornoch (Astronomical Institute, Ondrejov, Czech Republic), H. Kucakova (Astronomical Institute, Charles U., Prague, Czech Republic)
on 8 Jun 2017; 10:02 UT
Credential Certification: Martin Henze (firstname.lastname@example.org)
Subjects: Optical, Nova, Transient
Referred to by ATel #: 10522
We report the discovery of an apparent nova in M31 on a co-added 1530-s R-band
CCD frame taken on 2017 Jun. 7.994 UT with the 0.65-m telescope at Ondrejov.
The new object is visible also on a prediscovery frame taken on 2017 Jun. 5.066 UT
with the same instrumentation.
The object designated PNV J00423878+4115498 is located at R.A. = 0h42m38s.78,
Decl. = +41o15'49".8 (equinox 2000.0), which is 62.5" west and 18.7" south
of the center of M31 (see link to discovery image below).
The following R-band magnitudes were obtained using the 0.65-m telescope
2017 Jun. 3.057 UT, [19.8; 4.054, [18.6; 5.066, 18.1 ± 0.15;
7.994, 16.5 ± 0.1; 8.044, 16.5 ± 0.1.
We thank J. Vrastil for getting images on Jun. 3.057 UT.