Central Bureau for Astronomical Telegrams

CBAT "Transient Object Followup Reports"

TCP J00383874+4053374

TCP J00383874+4053374   2021 11 30.5795*  00 38 38.74 +40 53 37.4  18.74G             And       R 1

2021 11 30.5795

Shuming Wang, Jiangao Ruan, Jianlin Xu, Yanxi Li, Mi Zhang, Guoyou Sun, Wenjie Zhou, Jingyuan Zhao, Yi Ding, Xing Gao (Xingming Observatory), report the discovery of an UV candidate (18.74+-0.09G). The source appears to correspond to object Gaia EDR3 381196764340834816 (20.18 G) in the Gaia EDR3. Discovery was made on one 120-s survey image (limiting mag about 20.0) taken by Xing Gao around 2021 Nov 30.57954 UT at Xingming Observatory #2 (N89) using a unfiltered CCD (0.5-m f/4 reflector). Images can be found at: http://xjltp.china-vo.org/psp21aj.html

2021 11 30.7532

Follow-up observations were performed by Xing Gao at Xingming Observatory #3 (N88) around Nov. 30.74, 2021 UT using a unfiltered CCD (+ 0.6-m f/8 Ritchey-Chretien telescope). Several 300-s survey images (limiting mag about 21.5) showed that the candidate has decreased to 19.89+-0.09G, 30.73851 UT; 20.01+-0.10G, 30.74219 UT; 19.82+-0.09G, 30.74586 UT; 20.01+-0.10G, 30.74954 UT; 19.83+-0.09G, 30.75322 UT. The candidate likely to be an UV star.