TCP J02153006+5717542 2019 12 23.3590* 02 15 30.06 +57 17 54.2 12.1 U Per 9 0
2019 12 23.359
Discovered by H. Nishimura, Shizuoka-ken, Japan, Japan, who found this star on three frames (limit mag.= 13.5) taken with Canon EOS 6D digital camera + 200-mm f/3.2 lens, who writes Nothing is visible at the discovery position on three frames taken on 2019 December 20.358 UT using same instrument under the limiting mag.= 13.6.
2018 12 22.2024
Already known as ASASSN-19ado = AT 2019xim: discovered by the All-Sky Automated Survey for Supernovae (ASAS-SN) and reported on 2019 December 22 at 12:15:57 UTC to the IAU Transient Name Server (TNS): https://wis-tns.weizmann.ac.il/object/2019xim --- Patrick Schmeer (Saarbrücken-Bischmisheim, Germany)
2019 12 24.364
http://k-itagaki.jp/images2019/TCP-Per.jpg
2019 12 24.364
http://k-itagaki.jp/images/TCP-Per.jpg