Central Bureau for Astronomical Telegrams

CBAT "Transient Object Followup Reports"

PNV J00435768+4134528

PNV J00435768+4134528   2016 07 21.6971*  00 43 57.68 +41 34 52.8  17.9 U  827E1124N  M31       N 0

2016 07 21.6971

Koichi Nishiyama, Kurume,Japan and Fujio Kabashima, Miyaki,Japan report the discovery of a possible nova (mag.= 17.9) in M31 on seven 60-s unfiltered CCD frames taken around 2016 July 21.69708 UT, ( limiting magnitude = 19.7 ) using a 0.50-m f/6.8 reflector (+FLI 1001E camera). as follows We report that this star locates 827" east and 1124" north from the center of galaxy. Nothing is visible at this location on our past frames taken on 2016 March 05.457 UT ( limiting magnitude = 19.0 ). 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 19.1) and 1993 Oct.214 (limiting infrared mag 18.7). the nearest star in M31 catalogue (http://www.lowell.edu/users/massey/lgsurvey.html) has position end figures 57s91, 57"0, distance 4"9, magnitudes V=21.6, B=22.0, R=21.3,

2016 07 22.64553

2016 07 22.64553 Follow-up : Mag.= 18.0U, telescope 0.28-m f/7.1 + unfiltered CCD, Observer Yasuo Sano (Hokkaido Nayoro, Japan)

2016 07 22.64553

image (http://supernovajazz.web.fc2.com/sn/pnv-j00435768-4134528.html)

2016 07 23.6233

H. Naito detected this transient as a source at the magnitude of Rc = 19.38 +- 0.21 (reference stars from USNO-B1.0, R2-mag) and of V = 18.26 +- 0.33 (reference stars from GSC 2.3) on images taken on Jul. 23.6233 and 23.6274 UT, respectively with the 1.6-m Pirka telescope (+ MSI) at Nayoro Observatory.

2016 07 25.7300

H. Naito reported additional photometry of PNV J00435768+4134528 using the 1.6-m Pirka telescope of Hokkaido University with MSI at Nayoro Observatory as Rc = 19.78 +- 0.06 (reference stars from USNO-B1.0, R2-mag) on Jul. 25.7300.