Central Bureau for Astronomical Telegrams

CBAT "Transient Object Followup Reports"

TCP J18572663+1349102

TCP J18572663+1349102   2020 04 29.6733*  18 57 26.63 +13 49 10.2  13.6 U             Aql       9 9

2020 04 29.673

Discovered by Tadashi Kojima, Tsumagoi,Gunma-ken, Japan, on three frames under limiting mag.= 14.1 taken by Canon EOS 6D + 200mm f/3.2 lens. Nothing is visible at this location taken on 2020 Mar4.810 UT with 200mm lens under the limiting mag.= 14.0 T.kojima confirmed Mag=13.5 on 2020 Apr30.734UT, Mag=13.5 on 2020 May1.749UT with 300mmlens.

2020 05 03.759

Mag. V=13.55, Ic=10.34, position end figures 26s.48, 09".6 observerd K. Yoshimoto, Yamaguchi-ken, Japan, using 0.50-m f/6.8 reflector with focal reducer at Siding Spring, remotely.

2020 05 03.91

Outburst of the maser IRAS 18551+1345. The slow rise can be seen in ASAS-SN Sky Patrol (Shappee et al. 2014ApJ...788...48S and Kochanek et al. 2017PASP..129j4502K) data; a previous outburst was recorded in 2015; complete light curve at https://asas-sn.osu.edu/light_curves/7947a402-aa29-4a07-a2db-7faacf9b0117 —— Patrick Schmeer (Saarbrücken-Bischmisheim, Germany)

2020 05 05.0707

Photometry results were B=15.88, V=13.38, Rc=12.08 and Ic=10.41 with 0.43-m f/6.8 CDK astrograph + SBIG STL-11000M CCD at iTelescope.NET, Nerpio, Spain. Position end figures were 26.49 and 09.6 in R.A. and Dec. Seiichiro Kiyota (Kamagaya, Japan)

2020 05 04.0707

Errata. Obsrvation date is not 05.0707 bur 04.0707. Seiichiro Kiyota.

2020 05 05.31

The two "outbursts" mentioned by me above are actually maxima of a Mira variable. The ASAS-SN Sky Patrol light curve is "contaminated" by two nearby 16 mag. stars; the true minimum magnitude is ~22 V. Patrick Schmeer (Saarbrücken-Bischmisheim, Germany)