Central Bureau for Astronomical Telegrams

CBAT "Transient Object Followup Reports"

TCP J10494774-6946001

TCP J10494774-6946001   2020 05 11.9956*  10 49 47.74 -69 46 00.1  15.8 C             Car       9 0

2020 05 11.9956

Discovered by L. Amaral, E. Pimentel, C. Jacques, C. Colesanti, C. Barreto, I. Mussi, J. Ribeiro, M. Domingues, J. Amancio, P. Holvorcem, T. Napoleao on behalf of the Brazilian Transient Search - BraTS - at Observatorio Campo dos Amarais, Bilac, Brazil in three frames with 30 seconds exposure using a 306mm f/2.9 reflector + CCD with magnitude 15.8 under limiting magnitude 18.7. Nothing is visible at this location on the previous frame (limiting mag = 19.5) taken on 2020 Apr. 27.0179 UT.

2020 05 13.0090

Mag. 14.4 on three 30-s exposures using a 280mm f/2.2 astrograph + unfiltered CCD. Observers C. Jacques, C. Colesanti, C. Barreto, E. Pimentel, I. Mussi, J. Ribeiro, M. Domingues, J. Amancio, L. Amaral, P. Holvorcem, T. Napoleao on behalf of the Brazilian Transient Search - BraTS at SONEAR Observatory, Oliveira, Brazil.

2020 05 14.9687

Brightening (outburst?) of the OH/IR star IRAS 10481-6930. Gaia DR2 position end figures are 47.67s in RA and 59.8" in DE (equinox J2000.0, epoch J2015.5). No brightening was recorded by the ASAS-SN Sky Patrol (Shappee et al. 2014ApJ...788...48S and Kochanek et al. 2017PASP..129j4502K) since 2016 February 19. The latest observations are 2020 May 10.773 UT, gmag. fainter than 17.1; 14.969 UT, fainter than 16.8; complete light curve at https://asas-sn.osu.edu/light_curves/da72b7b3-bbd0-4746-9e77-9742f9182506 —— Patrick Schmeer (Saarbrücken-Bischmisheim, Germany)