Central Bureau for Astronomical Telegrams

CBAT "Transient Object Followup Reports"

TCP J14420760-1758238

TCP J14420760-1758238   2022 02 11.8211*  14 42 07.60 -17 58 23.8  12.2 U             Lib       9 0

2022 02 11.821

Discovered by Tadashi Kojima, Tsumagoi,Gunma-ken, Japan, on three frames(5_s exp) under limiting mag.= 13.5 taken by Canon EOS 6D + 200mm f/3.2 lens. Nothing is visible at this location taken on 2022 Feb10.809 UT under limiting mag.= 13.8,with same instrument

2022 02 12.5813

Star at that position, mag 12.3 TG, in image taken with Canon 800D & 200mm lens. Star is blue in high saturation. Image at https://imgur.com/a/rhErp65 . Observer: Rob Kaufman, Bright, Victoria, Australia.

2022 02 12.664

Mag.= 13.0, position end figures 07s.76, 21".5 observed by T. Noguchi, Katori, Japan, using 0.23-m f/10 Schmidt Cassegrain + unfiltered CCD (KAF-0261E), An image at http://park8.wakwak.com/~ngc/images/TCPinLib_20220213.jpg.

2022 02 12.330

On 2022-02-12.330 we obtained a spectrum of TCP J14420760-1758238 with the 4.1m SOAR telescope equipped with the Goodman spectrograph. The spectrum reveals broad Balmer absorption and HeII emission at 4686A, typical for a dwarf nova in outburst. Astrometry from SOAR acquisition images: 14:42:07.81 -17:58:22.3 +/-0.1" J2000 ---- Kirill Sokolovsky, Jay Strader, Elias Aydi, Laura Chomiuk, Adam Kawash (MSU)

2022 02 12.1189

Early photometry from the NMW wide-field camera (135mm f/2.0 lens + unfiltered SBIG ST-8300M CCD): 2022-02-12.1189 CV=12.35 +/-0.03, 2022-02-12.1354 CV=12.37 +/-0.04, 2022-02-14.1118 CV=12.65 +/-0.08. ---- Olga Smolyankina, Stanislav Korotkiy, Anna Prokudina, Kirill Sokolovsky