Central Bureau for Astronomical Telegrams

Central Bureau for Astronomical Telegrams -- Image credits

CBAT "Transient Object Followup Reports"

PSN J22412689+3917220

PSN J22412689+3917220   2015 08 19.067 *  22 41 26.89 +39 17 22.0  17.0 U    6E  10S  U12156    2 0


2015 08 19.067

Jaroslaw Grzegorzek, Szczecin, Poland, reports the discovery of a possible supernova (mag 17.0) on unfiltered CCD images (limiting mag 18.8) taken by himself on Aug 19.067 with a 0.25-m f/4 reflector at his observatory in the course of the supernova search project. Confirmation images was taken at T21 iTelescope (0.43m f/4.5), New Mexico, USA Nothing is visible at this position on Digitized Sky Survey images.



2015 08 19.067

Discovery image is available at http://www.jgao.pl/pgc69498.html



2015 08 19.81817

This transient was observed on 2015 08 19.81817 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. 17.2 (R mags for the reference stars from UCAC-4). We also performed astrometry, getting the following end figures: 26.95; 21.3 (J2000.0, mean residuals of 0.2" on both axes).



2015 08 19.8107

Mag.: 17.5(V) R.A.: 22 41 26.94; Decl.: +39 17 21.1 (2000.0). Reference: PPMXL Observer: Massimiliano Martignoni - Observatory: Stazione Astronomica Betelgeuse (B75), Magnago, Italy Telescope: Schmidt-Cassegrain 0.25m-f/10.0 - CCD: KAF0261E



2015 08 19.729

This Type 1a supernova in UGC 12156 was detected with 9 x 10 min images using a clear filter Photometry: Mag 17.44 +/- 0.14 C (V for ref; USNOA2) Astrometry: RA 22 41 26.98 Dec +39 17 21.0 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@N02/20964485752/



2015 08 22.772

Follow-up This Type 1a supernova in UGC 12156 was detected with 4 x 10 min images using a clear filter Photometry: Mag 17.01 +/- 0.12 C (V for ref; USNOA2) Astrometry: RA 22 41 26.97 Dec +39 17 21.0 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@N02/20964485752/



2015 09 05.804

This transient was observed by J. Grzegorzek on 2015 09 05.804 Mag. 16.5U (ref. UCAC4).



2015 09 18.67328

This transient was observed on 2015 09 18.67328 UT by Zhijian Xu and Xing Gao, using an unfiltered CCD ( + Celestron C14 Schmidt-Cassegrain telescope D=356-mm @f/6.9 ), in Xingming Observation Sky Survey(C42). 60-seconds exposures, show the source at mag. 17.1 U (reference stars from UCAC-4), with position end figures 26s.97, 21".1. Image can be seen: http://njzhijian.lamost.org/Supernova/PSN_J22412689+3917220_0918.jpg



2015 11 12.816

This transient was observed by J. Grzegorzek on 2015 11 12.816 Mag. 17.8U (ref. UCAC4); 0.25-m f/4 reflector


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