Central Bureau for Astronomical Telegrams

CBAT "Transient Object Followup Reports"

PSN J23102264+0735202

PSN J23102264+0735202   2015 09 06.2866*  23 10 22.64 +07 35 20.2  17.9 U    4E  30N  NGC7499   P  0

2015 09 06.671

This possible supernova in NGC 7499 was detected with 12 x 10 min images using a clear filter Photometry: Mag 18.00 +/- 0.45 C (V for ref; USNOA2) Astrometry: No solution with pinpoint. 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@N02/21182382926/

2015 09 06.88588

We performed some follow-up of this object (unfiltered magnitude = 18.2) on several images through a 0.25-m f/4 reflector + CCD and exposure 10x120sec from MPC Code C77 (Bernezzo Observatory, Italy)

2015 09 07.77772

This transient was observed on 2015 09 07.77772 by G. Masi, 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. 16.6 (R mags for the reference stars from UCAC-4). We also performed astrometry, getting the following end figures: 22.62; 20.7 (J2000.0, mean residuals of 0.2" on both axes).

2015 09 19.9007

This transient was observed on September 19.9007 by Ovidiu Tercu at his Galati Astronomical Observatory of the Galati Natural Sciences Museum, magnitude 18.2 U (limiting magnitude 19.7 U), R.A.= 23 10 22.63, Decl.= 07 35 20.3