Discovery of a Probable Nova in M81
ATel #4630; K. Hornoch (Astronomical Institute, Ondrejov, Czech Republic)
on 9 Dec 2012; 07:46 UT
Credential Certification: Allen W. Shafter (aws@nova.sdsu.edu)
Subjects: Optical, Nova, Transient
I report the discovery of a probable nova in M81 on a co-added 2340-s R-band CCD frame taken on Dec. 9.179 UT with the 0.65-m telescope at Ondrejov.
The new object designated PNV J09555177+6902549 is located at R.A. = 9h55m51s.77, Decl. = +69o02'54".9 (equinox 2000.0), which is 99.7" east and 60.2" south of the center of M81 (see link to discovery image below).
The following magnitudes were obtained using the 0.65-m telescope at Ondrejov and the 1.23-m telescope at Calar Alto:
2012 Oct. 29.198 UT, [22.0 (1.23-m telescope, R-band); Dec. 9.179, 20.3 +/- 0.2 (0.65-m telescope, unfiltered, R-band magnitudes used from comparison stars); 9.213, 20.3 +/- 0.2 (0.65-m telescope, R-band).
I thank J. Gorosabel and P. Kubanek for getting M81 images at Calar Alto.
Discovery image
