SIMBAD references

Kamil Hornoch and Adrian Galad, Astronomical Institute, Ondrejov, report their independent discovery of the above variable in M31 on a co-added 2340-s R-band CCD frame taken under poor conditions on Dec. 16.729 UT with the 0.65-m telescope at Ondrejov. The new object is well visible on single images used for the co-added frame and is located at R.A. = 0:42:56.67, Decl. = +41:17:21.3 (equinox 2000.0), which is 139" east and 73" north of the center of M31. The measured position is only about 0".7 from the best position for the "Fe II"-class nova M31N 2010-01a (cf. CBETs 2124, 2127, 2136, 2187) that was measured by Hornoch from the 2.4-m Hiltner telescope image taken by J. Prieto and R. Khan on 2010 Jan. 13.110 UT, which suggests that the currently detected bright object could be caused by another outburst of M31N 2010-01a. Available R-band magnitudes for the variable during its current outburst, measured by Hornoch: Dec. 4.211 UT, [21.7 (P. Garnavich and J. Pagnini, 1.83-m Vatican Advanced Technology Telescope + Vatt4k imager); 13.930, [18.5 (Hornoch, 0.65-m telescope at Ondrejov); 16.729, R = 16.5 ± 0.1 (Hornoch and Galad, 0.65-m telescope at Ondrejov).