Central Bureau for Astronomical Telegrams

Central Bureau for Astronomical Telegrams -- Image credits

CBAT "Transient Object Followup Reports"

PNV J00452282+4131589

PNV J00452282+4131589   2013 08 13.6653*  00 45 22.82 +41 31 58.9  17.5 U 1780E 950N  M31       I 0


2013 08 13.6653

Images:http://www.k-itagaki.jp/images/pnv-m31.jpg



2013 08 13.689

D. Denisenko, E. Gorbovskoy, V. Lipunov (SAI MSU), V. Yurkov, Y. Sergienko, A. Gabovich (Blagoveshchensk Educational University) report the independent discovery of a possible Nova in M31 on the unfiltered survey images (180 sec exposures, limiting mag. 18.9) taken by MASTER-Amur robotic telescope (double 0.40-m f/2.5 reflector + 4kx4k CCD) 35, 55 and 75 minutes after the detection by K. Itagaki. New object position (average of 6 measurements): 00h45m22s.81, +41o31'58".3 (J2000.0). Magnitudes (unfiltered with the red zero point; averaged from two tubes): 2013 Aug. 13.689 UT, 16.82; 13.703, 16.78; 13.718, 16.70. Nothing is present at this position on MASTER-Kislovodsk Red image of Aug. 11.967 UT (m_lim=17.5) and on unfiltered image of Aug. 10.967 UT (m_lim=19.1). MASTER-Amur discovery and reference images are available at this URL: http://master.sai.msu.ru/static/OT/004522.89413158.5.png



2013 08 15.969

V. Vladimirov, D. Denisenko, V. Lipunov (SAI MSU) report the follow up photometry of PNV J00452282+4131589 in M31 on the Red images obtained by 0.40-m f/2.5 MASTER-Kislovodsk reflector + 4kx4k CCD (180 sec exposures, limiting mag. about 19): 2013 Aug. 14.939, 16.73; 14.954, 16.57; 14.968, 16.67; 15.941, 17.14; 15.955, 17.33; 15.969, 17.31 (photometric errors 0.07m). Our observations show that the object has reached the maximum around Aug. 14 fading by 0.6m over the next 24 hours. MASTER-Kislovodsk images from Aug. 14, 15 and 11 (pre-outburst) are available at http://master.sai.msu.ru/static/OT/J004522+413158-Kislovodsk.png



2013 08 21.0032

Mag.: 17.9(V) R.A.: 00 45 22.83; Decl.: +41 31 59.7 (2000.0). Reference: PPMXL Observer: Massimiliano Martignoni - Observatory: Stazione Astronomica Betelgeuse (B75), Magnago, Italy Telescope: Schmidt-Cassegrain 0.25m-f/10.0 - CCD: KAF0261E


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