Central Bureau for Astronomical Telegrams

CBAT "Transient Object Followup Reports"

PSN J22044374-3313306

PSN J22044374-3313306   2015 07 12.9165*  22 04 43.74 -33 13 30.6  18.5 U    3W  13S  P679288   9 0

2015 07 12.90902

Vladimir Lipunov reports that Pavel Balanutsa with MASTER-SAAO auto-detection system (double 0.40-m f/2.5reflector + 4Kx4K CCD) discovered OT source at (RA, Dec) = 22h 04m 43.74s -33d 13m 30.6s on 2015-07-12.90902 UT(180s exposition). Optical unfiltered (0.2B + 0.8R USNO_B1) magnitude of this possible SN is 18.5m (the limit is 20.1m). There are 3 images with this PSN (2015-07-12.90153UT, 2015-07-12.909UT, 2015-07-12.916UT). Evgeny Gorbovskoy and David Buckley report that nothing was visible at this position on MASTER-SAAO archieve images on 2015-05-25.9667 UT with 20.8 unfiltered magnitude limit. There is no minor planet at this place.

2015 07 16.631

This probable supernova in PGC 679288 was detected with 15 x 10 min images using a clear filter Photometry: Mag 18.45 +/- 0.28 C (V for ref; USNOA2) Astrometry: RA 22 04 43.74 Dec -33 13 30.2 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@N02/19638789618/

2015 07 18.616

Follow-up This probable supernova in PGC 679288 was detected with 15 x 10 min images using a clear filter Photometry: Mag 18.25 +/- 0.35 C (V for ref; USNOA2) Astrometry: RA 22 04 43.74 Dec -33 13 30.4 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@N02/19638789618/