Central Bureau for Astronomical Telegrams

CBAT "Transient Object Followup Reports"

PSN J17041605+4130376

PSN J17041605+4130376   2013 05 21.71  *  17 04 16.05 +41 30 37.6  17.7 U    1E   1N            9 9   

2013 05 21.71

We discovered this object on May 21.71 2013 UT in the Tsinghua University-NAOC Transient Survey (TNTS),and the magnitude of the object on unfiltered CCD was about 17.7 mag. We got additional image on May 29, with unfiltered magnitude of 17.5 mag. A spectrum taken on May 31.70 2013 UT shows it is a type Ia supernova at about one week within the maximum light.

2013 06 7.01

Asiago-Padova spectroscopic ID: Type-Ia supernova at about twelve days after maximum light.