Central Bureau for Astronomical Telegrams

CBAT "Transient Object Followup Reports"

PSN J16265528+3338244

PSN J16265528+3338244   2014 03 28.7793*  16 26 55.28 +33 38 24.4  16.8 U    0E   1N            9 0

2014 03 28.779

Vladimir Lipunov reports the discovery of a possible supernova by Pavel Balanutsa using MASTER-Tunka robotic telescope (0.40-m f/2.5 reflector + 4Kx4K CCD) and auto-detection system on the unfiltered survey images (60-sec exposures, limit 19.5m) obtained on 2014-03-28.779 UT. The new object (unfiltered magnitude 16.8) is located at R.A. = 16h26m55s.28, +33o38'24".4 (J2000.0) which is 0" east and 1" north of the object SDSS J162655.31+333822.9 (rmag=22.5) listed as galaxy in SDSS catalogue and 9" west and 6" north of the nucleus of galaxy SDSS J162656.04+333818.3 (rmag=19.4). The object is seen in 6 images. We have reference image without OT on 2012-02-21.936 UT with unfiltered magnitude limit 19.8m. The discovery and reference images are available at: http://master.sai.msu.ru/static/OT/162655.28333824.4.png (see also ATel 6024, http://www.astronomerstelegram.org/?read=6024 )

2014 04 01.138

This transient was observed on 2014 04 01.138 by Gianluca Masi, Francesca Nocentini and Patrick Schmeer, remotely using the 17"-f/6.8 corrected Dall-Kirkham 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. 17.4 (R mags for the reference stars from UCAC-4). We also performed astrometry, getting the following end figures: 55.30; 23.7 (J2000.0, mean residuals of 0.2" on both axes).