Central Bureau for Astronomical Telegrams

CBAT "Transient Object Followup Reports"

PNV J00432012+4113041

PNV J00432012+4113041   2023 09 23.7869*  00 43 20.12 +41 13 04.1  19.7 V  404E 183S  M31       9 1

2023 09 23.7869

Jingyuan Zhao and Weihao Wang, report the discovery of a possible nova. Discovery image using V-filter, exposured 300-s, obtained by 0.5-m f/6.8 Lulin-ASIAA Telescope for Transients and Education (LATTE) of Lulin Observatory (D35) around 2023 Sept. 23.78692 UT. The transient is also visible on another R-filter image taken by the same instrument (2023 Sept. 23.79049, mag = 19.6 R), but nothing is visible at this position on archival image taken on 2023 Sept. 22.67779 UT (limiting mag 21.0). We also reported the transient to TNS, and it was named AT 2023tmh = Jingyuan N12 (see https://www.wis-tns.org/object/2023tmh ). Images can be found at https://www.wis-tns.org/system/files/uploaded/general/tns_2023tmh_atrep_188974.png

2023 09 27.68932

The transient has brightened to 17.3 V (2023-09-27.68932) and 17.1 R (2023-09-27.69666). Spectroscopic and photometric observations are strongly encouraged.