Central Bureau for Astronomical Telegrams

CBAT "Transient Object Followup Reports"

PSN J12054713+2025026

PSN J12054713+2025026   2015 04 13.055 *  12 05 47.13 +20 25 02.6  18.5 U    1E   8S  P1626773  P 2

2015 04 15.82523

This transient was observed on 2015 04 15.82523 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. 18.2 (R mags for the reference stars from UCAC-4). We also performed astrometry, getting the following end figures: 47.18; 02.4 (J2000.0, mean residuals of 0.1" on both axes).

2015 04 16.597

This probable supernova in PGC 1626773 was detected with 6 x 10 min images using a clear filter Photometry: Mag 19.77 +/- 0.13 C (V for ref; USNOA2 V) Astrometry: RA 12 05 47.18 Dec +20 25 02.7 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@N02/17158152536/

2015 04 08.54

This object was detected on Apr.08.54 2015 in the images taken during the Tsinghua University-NAOC Transient Survey (TNTS), and the magnitude of the object on unfiltered CCD was about 18.2 mag. Discovery and reference images: http://www.thca.tsinghua.edu.cn/~wangxf/TNTS/PSNJ12054724+2025023.png