TCP J19494280+1043390 2023 03 20.8155* 19 49 42.80 +10 43 39.0 12.3 U Aql 9 9
2023 03 20.816
Discovered by Tadashi Kojima, Tsumagoi,Gunma-ken, Japan, on three frames(4_s exp) under limiting mag.= 14.7 taken by Canon EOS 6D digital camera + 300mm f/3.2 lens. Mag=14.5 on 2022 Oct29.403UT with same instrument. Mag=<13.3 on 2023 Feb21.824UT taken by Canon EOS 6D digital camera + 200mm f/3.2 lens.
2023 03 21
AT2023cvz
2023 03 21.1743
Photometry results were V=13.00 and Ic=11.62 wth T18, iTelescope.NET (0.32-m f/8.0 CDK astrograph + QHY600M-PH-US) at Nerpio, Spain. https://meineko.com/ccd/TCP_J19494280+1043390.jpg Seiichiro Kiyota (Kamagaya, Japan)
2023 03 30.29
Pre discovery observations. Mag=13.3 on 2023 Mar14.7816UT by Canon EOS6D+300mmlens. Mag=13.0 on 2023 Mar18.7805UT bY Canon EOS6D+200mmlens. T.Kojima