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Central Bureau for Astronomical Telegrams -- Image credits

CBAT "Transient Object Followup Reports"

PSN J12515170+4716180

PSN J12515170+4716180   2013 01 16.9886*  12 51 51.70 +47 16 18.0  19.1 U                       250

2013 01 16.9886

V. Lipunov (SAI MSU) reports the discovery by S. Shurpakov of a possible supernova (mag. 19.1) on two unfiltered survey images (limiting mag 19.5) taken on Jan. 16.988 and 16.956 UT with the MASTER-Kislovodsk robotic telescope (0.40-m f/2.5 reflector + 4Kx4K CCD). The new object is located at R.A. = 12h51m51s.70, Decl. = +47o16'18".0 (equinox 2000.0). The OT unfiltered magnitude is 19.1m (limit 19.5m). The OT is seen in 2 images. There is no minor planet at this place. We have reference image without OT on 2012-03-02.89241 UT with unfiltered magnitude limit 19.7m. There is SDSS galaxy J125152.01+471620.0 with 3.8 arcsec offset. Spectral observations are required. The discovery and reference images are available at: http://master.sai.msu.ru/static/OT/125151.71471618.0.png (see also ATel #4749).