Central Bureau for Astronomical Telegrams

CBAT "Transient Object Followup Reports"

TCP J15451038-4929424

TCP J15451038-4929424   2023 07 05.0768*  15 45 10.38 -49 29 42.4  14.8 U             Nor       9 1

2023 07 05.0768

Discovered by C. Jacques, C. Colesanti, C. Barreto, E. Pimentel,J. Ribeiro, M. Domingues, J. Amancio, L. Amaral, P. Holvorcem, T. Napoleao on behalf of the Brazilian Transient Search - BraTS - at SONEAR 2 Observatory, Belo Horizonte, Brazil in three frames with 10 seconds exposure using an astrograph 280mm f/2.2 + CCD unfiltered, with magnitude 14.8 under limiting mag = 16.5. Nothing is visible at this location on the previous frames (limiting mag = 16.5) taken on 2023 May 05.1241 UT.

2023 07 05.5201

Transient is confirmed from ASAS lightcurve (Shappee et al. 2014ApJ...788...48S and Kochanek et al. 2017PASP..129j4502K) https://asas-sn.osu.edu/sky-patrol/coordinate/a8a81a76-bcb2-430e-9022-6cc7d54f78b9

20203 07 05.9188

Position end figures 10s.37, 43".6 measured with 0.50m reflector + CCD at Skygems Observatory, Namibia. J2000, Gaia DR2 positions. Position may correspond to a 20.4 magnitude star (Gaia DR3 5985490067524426368). Approximate unfiltered R magnitude 15.2 using APASS R mag comparison stars. Andrew Pearce, Nedlands, Western Australia.

2023 07 07.5748

Photometry results were B=16.90, V=16.40, Rc=16.15 and Ic=15.86 with 0.43-m f/6.8 CDK astrograph + FLI PL4710 CCD (T17, iTelescope.NET) @ SSO, Australia. Slightly red? Seiichiro Kiyota (Kanmagaya, Japan)