Central Bureau for Astronomical Telegrams

CBAT "Transient Object Followup Reports"

PSN J09052646+5624124

PSN J09052646+5624124   2013 11 06.87  *  09 05 26.46 +56 24 12.4  18.3 U    8E   1S            9 9 

2013 11 06.87

We discovered this object on Nov.06.87 2013 UT in the Tsinghua University-NAOC Transient Survey (TNTS), and the magnitude of the object on unfiltered CCD was about 18.3 mag.

2013 11 09.035

This transient was observed on 2013 11 09.035 by Gianluca Masi, Francesca Nocentini and Patrick Schmeer, remotely using the 14"-f/8.7 robotic unit part of the Virtual Telescope Project facility in Ceccano, Italy. 300-seconds exposures, unfiltered, show the source at mag. 17.6 (R mags for the reference stars from UCAC-4). We also performed astrometry, getting the following end figures: 25.87s; 12.9" (J2000.0, mean residuals of 0.12" on both axes). The object is superimposed to a small galaxy.

2013 11 09.074

** revised astrometry and photometry ** This transient was observed on 2013 11 09.074 by Gianluca Masi, Francesca Nocentini and Patrick Schmeer, remotely using the 14"-f/8.7 robotic unit part of the Virtual Telescope Project facility in Ceccano, Italy. Co-adding 8, 300-seconds exposures, unfiltered, and with a scale of 0.62"/pixel we see the source at mag. 18.5 (R mags for the reference stars from UCAC-4). We also performed astrometry, getting the following end figures: 26.32s; 11.8" (J2000.0, mean residuals of 0.09" on both axes). The object is superimposed to a small galaxy (likely the host one), a bit east of its nucleus .