Central Bureau for Astronomical Telegrams

CBAT "Transient Object Followup Reports"

TCP J06571119-1724439

TCP J06571119-1724439   2026 01 18.5375*  06 57 11.19 -17 24 43.9  14.2 C             CMa       0 5

2026 01 18.5375

Discovered by Yuji Nakamura, Kameyama, Mie, Japan, on four frames (20-s exp. limiting mag. 16.5) using 0.10-m F3.0 refractor + unfiltered cooled CMOS camera. Nothing is visible at this location on the frames taken on 2026 Jan. 13.5157 UT (20-s exp. limiting mag. 16.5) by same instruments. ASAS-SN caught this object at mag ~14 on several times. Possibly Flare star. --- Hitoshi Yamaoka (NAOJ)

2026 01 18.4996

Pre discovery observations: Mag=14.7 on 2026 Jan18.4996UT taken by Canon EOS 6D + 300mm f/3.2 lens.Tadashi Kojima,Japan.

2026 01 18.0887

The transient is visible at CV=14.0 in pre-discovery images obtained with the NMW-TexasTech wide-field camera (135mm telephoto lens + QHY600M CMOS) on 2026-01-18.0887 UTC. This camera is currently being commissioned at Preston Gott Skyview Observatory (Shallowater, Texas). The plate-solved FITS images are available at http://scan.sai.msu.ru/~kirx/img/TCPJ06571119-1724439/ ---- Kirill Sokolovsky (Texas Tech University)

2026 01 19.4310

Nakamura further reports that this object was at mag 14.5 on 2026 Jan. 19.4310 UT in the images taken with 0.20-m F6.4 refl. + cooled CMOS camera (13 x 30s exposure). -- Hitoshi Yamaoka (NAOJ)