Central Bureau for Astronomical Telegrams

CBAT "Transient Object Followup Reports"

PSN J23201093+2850583

PSN J23201093+2850583   2015 09 07.54  *  23 20 10.93 +28 50 58.3  18.3 U    0E   0N            9 9

2015 09 07.54

We discovered this object on September 07.54 2015 UT in the Tsinghua University-NAOC Transient Survey (TNTS), and the magnitude of the object on unfiltered CCD was about 18.3 mag. Discovery and reference images: http://www.thca.tsinghua.edu.cn/~wangxf/TNTS/PSNJ23201093+2850583.png

2015 09 12.76550

This transient was observed on 2015 09 12.76550 by G. Masi, remotely using the 17"-f/6.8 robotic unit part of the Virtual Telescope Project facility, at Bellatrix Astronomical Observatory in Ceccano, Italy. 120-seconds exposures, unfiltered, show the source at mag. 18.3 (R mags for the reference stars from UCAC-4). We also performed astrometry, getting the following end figures: 10.93; 58.1 (J2000.0, mean residuals of 0.2" on both axes).