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Central Bureau for Astronomical Telegrams -- Image credits

CBAT "Transient Object Followup Reports"

TCP J20002413+1959394

TCP J20002413+1959394   2023 02 20.8278*  20 00 24.13 +19 59 39.4  12.9 U             Sge       9 0

2023 02 20.82785

Discovered by Hideo Nishimura, Kakegawa, Shizuoka, Japan on three frames (30-s exp. limiting mag 15) taken by Canon EOS 6D digital camera + 200-mm F/3.2 lens. On 2023 Feb. 19.81791 UT, mag=12.8 (limiting mag 15), 21.82700 UT, mag=13. Nothing is visible at this location on the frames taken on 2023 Feb. 17.83795 UT (limiting mag 15) by same instrument. --- Seiichiro Naito and Isao Endoh (NAOJ)

2023 02 24.8368

Photometry results were B=14.59, V=14.28, Rc=14.18 and Ic=14.23 with 0.28m SCT + QSI 632ws CCD at TAO-Kamagaya, Japan Seiichiro Kiyota (Kamagaya, Japan)