2010CBET.2190....1H

Kamil Hornoch, Ondrejov Observatory, reports the discovery by P. Hornochova and himself of a fairly bright apparent nova in M31 on co-added 1080-s and 900-s R-band CCD frames taken with the 0.65-m telescope at Ondrejov on Feb. 27.749 and 27.763 UT, respectively; the new object, designated M31N 2010-02a, is well visible on single images used for each co-added frame. The apparent nova is located at R.A. = 0:42:36.87, Decl. = +41:15:29.6 (equinox 2000.0), which is 84" west and 39" south of the center of the galaxy M31. Available R-band magnitudes for M31N 2010-02a: Jan. 31.838, [21.3 (P. Kubanek, N. Morales, J. L. Ortiz, J. Gorosabel, and M. Jelinek, 1.23-m telescope at Calar Alto); Feb. 25.745, [20.1 (K. Hornoch, 0.65-m telescope at Ondrejov); 27.749, 15.54 ± 0.09 (Hornoch and P. Hornochova, 0.65-m telescope at Ondrejov); 27.763, 15.68 ± 0.08 (Hornoch and Hornochova). Also, nothing visible at this position on numerous Lelekovice and Ondrejov images back to 2002.