Central Bureau for Astronomical Telegrams

Central Bureau for Astronomical Telegrams -- Image credits

CBAT "Transient Object Followup Reports"

PSN J23435576+2720327

PSN J23435576+2720327   2013 12 02.57  *  23 43 55.76 +27 20 32.7  19.2 U    0E   2N            9 9

2013 12 02.57

We discovered this object on Dec.02.57 2013 UT in the Tsinghua University-NAOC Transient Survey (TNTS), and the magnitude of the object on unfiltered CCD was about 19.2 mag.

2013 12 04.719

This transient was observed on 2013 12 04.719 by Gianluca Masi, Francesca Nocentini and Patrick Schmeer, remotely using the 17"-f/6.8 robotic unit part of the Virtual Telescope Project facility in Ceccano, Italy, with a scale of 0.63"/pixel. 300-seconds exposures, unfiltered, show the source at mag. 18.9 (R mags for the reference stars from UCAC-4). We also performed astrometry, getting the following end figures: 55.72s; 31.7" (J2000.0, mean residuals of 0.2" on both axes).

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