Central Bureau for Astronomical Telegrams

CBAT "Transient Object Followup Reports"

TCP J07131142+3015315

TCP J07131142+3015315   2020 02 19.5184*  07 13 11.42 +30 15 31.5  14.2 U             Gem       9 0  07 13 11.42 +30 15 31.5  14.2 U             Gem       9 0

2020 02 19.518

Discovered by Tadashi Kojima, Tsumagoi,Gunma-ken, Japan, on three frames under limiting mag.= 15.0 taken by Canon EOS 6D + 300-mm f/3.2 lens.

2020 02 17.8746

A likely progenitor is PSO J071311.198+301531.777 (gmag. 21.6, rmag. 21.7) at 07 13 11.20 +30 15 31.7 (J2000.0). Other designations are GSC2.3 N8EY014526 (Bjmag. 21.9), SDSS J071311.19+301531.7 (mag. 21.7 in several bands), GALEX J071311.0+301532 (nuv_mag. 21.9), and MLS_J071311.2+301532. The transient is confirmed by recent ASAS-SN Sky Patrol (Shappee et al. 2014ApJ...788...48S and Kochanek et al. 2017PASP..129j4502K) observations: 2020 February 17.032 UT, gmag. fainter than 16.0; 17.875, gmag. 14.75; 18.061, 14.50. No previous outbursts were recorded since 2012 Feb. 1 / 2013 Oct. 28; complete data and light curve at https://asas-sn.osu.edu/light_curves/7e8de15e-3f86-4571-8f85-292a1e9345f1 --- Patrick Schmeer (Saarbrücken-Bischmisheim, Germany)

2020 02 20.1145

Photometry:V=14.50 and Ic=14.57 with T24, iTelescope.NET, 0.61-m f/6.5 CDK astrograph + FLI PL09000 CCD at Sierra Remote Observatory, CA, USA. Position end figures 11.22 and 31.64 in R.A. and Dec. http://meineko.sakura.ne.jp/ccd/TCP_J07131142+3015315.jpg Seiichiro Kiyota (Kamagaya, Japan)