Central Bureau for Astronomical Telegrams

CBAT "Transient Object Followup Reports"

TCP J17183380-3123452

TCP J17183380-3123452   2023 09 01.9818*  17 18 33.80 -31 23 45.2  12.6 U             Sco       9 0

2023 09 01.9818

Discovered by E. Pimentel, C. Barreto, C. Colesanti, C. Jacques, J. Amancio, J. Ribeiro, L. Amaral, M. Domingues, 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 12.6 under limiting mag = 16.5. Nothing is visible at this location on the previous frames (limiting mag = 16.5) taken on 2023 Jun 12.1704

2023 09 02.560

Appears to be a red object, mag 13.4 TG (~V), in images obtained in bright moonlight with DSLR & 200mm lens from Bright, Victoria, Australia. Image with details here: https://photos.app.goo.gl/uKjPyPvPDUBSLQbX9 . Observer Rob Kaufman.

2023 09 03.3627

Position end figures 33s.81, 45".9 measured with 0.50m R-COP reflector + CCD (T30) at Siding Spring Observatory, NSW, Australia. J2000, Gaia DR2 positions. Position appears to correspond to uncatalogued star in DECaPS image. Photometry as follows: Sept 3.362 UT B = 15.21, Sept 3.363 UT V = 13.41, Sept 3.364 UT R = 11.99 and Sept 3.365 UT I = 10.62. Andrew Pearce, Nedlands, W. Australia.

2023 09 03.3764

Photometry results were B=15.79, V=13.11, Rc=11.75 and Ic=10.46 with 0.50-m f/6.8 reflector + FLI-PL6303E CCD (T30, iTelescope.NET) @ SSO, Australia. https://meineko.com/ccd/TCP_J17183380-3123452.jpg - Seiichiro Kiyota (Kamagaya, Japan)