Central Bureau for Astronomical Telegrams

CBAT "Transient Object Followup Reports"

TCP J04364690+2642311

TCP J04364690+2642311   2019 01 11.5556*  04 36 46.90 +26 42 31.1  13.4 U             Tau       8 0

2019 01 11.556

Discovered by T. Kojima, Gunma-ken, Japan, with five second exposure using Canon EOS 6D digital camera + 200-mm f/3.2 lens under the limiting mag = 14.2, who writes nothing is visible at this location on a frame taken on 2019 Jan. 10 UT with limit mag.= 13.7 and also there is a faint star (Bmag.= 20.0, Rmag.= 17.9) on the catalog.

2019 01 11.83

The abovementioned 'faint star (Bmag.= 20.0, Rmag.= 17.9)' is USNO-A2.0 1125-01704314, 5" away from the reported position of the transient; Gaia DR2 position end figures 47.313s, 33.20" (equinox J2000.0, epoch 2015.5; Gmag. 17.33, parallax 6.9947 ± 0.4201 mas, distance ~143 pc). Other designations are CSS_J043647.3+264233, GSC2.3 N9QK004471 (Vmag. 18.64), 2MASS J04364729+2642335, WISE J043647.30+264233.3, EPIC 248114812, etc. Flare star? --- Patrick Schmeer (Saarbrücken-Bischmisheim, Germany)

2019 01 13.067

K. Yoshimoto, Yamaguchi, Japan, writes nothing is visible on his frame with limiting mag.= 17 and also a faint star (USNO-A2.0 1125-01704314) is not clearly using Mayhill remote telescope of 0.43-m f/4.5 focal reducer.

2019 01 12.37014

F. Watanabe (Nayoro Observatory, Hokkaido, Japan) reports that no optical counterpart was observed at the predicted position with a 5-sigma upper limit R >20.86 on Jan. 12.37014 UT using a 0.4-m f/10 Meili telescope.