Central Bureau for Astronomical Telegrams

CBAT "Transient Object Followup Reports"

TCP J21032164+1823342

TCP J21032164+1823342   2023 04 26.7564*  21 03 21.64 +18 23 34.2  12.6 U             Del       9 9

2023 04 26.75637

Discovered by Hideo Nishimura, Kakegawa, Shizuoka, Japan on three frames (30-s exp. limiting mag 14.5) taken by Canon EOS 6D digital camera + 200-mm F/3.0 lens. Nothing is visible at this location on the frames taken on 2023 Apr. 16.77205 UT (limiting mag 14.5) by same instrument. --- Seiichiro Naito and Isao Endoh (NAOJ)

2023 04 27.3662

Photometry results were B=12.92, V=12.58 and Ic=13.06 with 0.25m Reflector F3.4 (T05, ITelescope.NET) at Utah Desert Remote Observatory at Great Basin Desert, Utah, USA. https://meineko.com/ccd/TCP_J21032164+1823342.jpg Seiichiro Kiyota

2023 04 26.7219

Independent discovery by Yuji Nakamura, Kameyama, Mie, Japan, (mag 12.6, position end figures 21s.58, 31".7) on a frame (10-s exp. limiting mag 15.0) taken by 0.10-m F3.0 refractor and CMOS camera. Nothing is visible at this location on the frames taken on 2023 Apr. 22.7399 UT (30-s exp. limiting mag 15.5) by same instrument. --- Seiichiro Naito and Isao Endoh (NAOJ)