Central Bureau for Astronomical Telegrams

CBAT "Transient Object Followup Reports"

PSN J12415045-0710122

PSN J12415045-0710122   2015 06 06.85  *  12 41 50.45 -07 10 12.2  16.3 U    4W   3S  P42600    9 1

2015 06 06.85

F. Ciabattari, E. Mazzoni and M. Rossi report the discovery of an apparent supernova (unfiltered magnitude = 16.3) on images (limiting magnitude 19.5) obtained on June 06.85 UT and June 7.85 UT with a 0.5m Newtonian telescope + CCD FLI Proline 4710 camera at Borgo a Mozzano - Italy, in the course of the Italian Supernovae Search Project. The new object is located at A.R. = 12h41m50s.45, Decl. = -07°10'12".2 (equinox 2000.0, astrometry with respect to UCAC-2 stars) which is 4 arcsec west and 3 arcsec south of the centre of Galaxy PGC 42600.

2015 06 08.510

This possible supernova in PGC 42600 was detected with 4 x 10 min images using a clear filter Photometry: Mag 15.96 +/- 0.19 C (V for ref; USNOA2) Astrometry: RA 12 41 50.44 Dec -07 10 12.9 These data were collected remotely by Joseph Brimacombe, Coral Towers Observatory, Cairns, Australia. Link to image and further information: https://www.flickr.com/photos/43846774@N02/18589810486/

2015 06 09.86759

This transient was observed on 2015 06 09.86759 by G. Masi and P. Catalano, 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. 16.2 (R mags for the reference stars from UCAC-4). We also performed astrometry, getting the following end figures: 50.44; 12.4 (J2000.0, mean residuals of 0.1" on both axes).