Central Bureau for Astronomical Telegrams

CBAT "Transient Object Followup Reports"

PNV J00433417+4125078

PNV J00433417+4125078   2012 03 09.4309*  00 43 34.17 +41 25 07.8  16.3 U   562E  539N M31       N 0

2012 03 10.421

Koichi Nishiyama, Kurume,Japan and Fujio Kabashima, Miyaki,Japan report the discovery of a possible nova .(mag.= 16.3) in M31 on two 40-s unfiltered CCD frames taken around 2012 Mar. 09.43094 UT, ( limiting magnitude = 18.5 ) using a Meade 200R 0.40-m f/9.8 reflector (+SBIG STL1001E camera). (reference catalogue USNO B1.0) as follows Nothing is visible at this location on our past frames taken on 2012 Feb. 12.443 UT (limiting magnitude = 19.1). and Feb. 26.425 UT (limiting magnitude = 18.7) . We have checked in Minor Planets. Nothing is visible at the position of possible nova on the Digitized Sky Survey(POSS2/UKSTU) from 1986 Nov. 27 (limiting red mag 18.9) and 1993 Oct. 21(limiting infrared mag 18.5). the nearest star in M31 catalogue (http://www.lowell.edu/users/massey/lgsurvey.html) has position end figures 34s44, 07."2, distance 3."1, magnitudes V=22.2, B=23.5, R=21.3 And we observe this PN Mar.10.421UT position end figures 34s19, 07"4 mag. 16.6 (limiting mag 18.3)

2012 03 10.40625

Mag.=16.2, R.A.=00 43 34.22 Decl=+41 25 07.4 (UCAC3), using 0.40m f/10 Schmidt Cassegrain + unfiltered CCD (SBIG STL-1001E) at Nayoro observatory. Position and magnitude were measured on an image composed from 15-frames which were taken by each 30-seconds exposure under the limiting magnitude = 19. Observer Y. Murakami, Nayoro, Hokkaido, Japan. Link to his image:http://space.geocities.jp/yusastar77/supernova/PNinM31_120310.htm