IAU Central Bureau for Astronomical Telegrams

Central Bureau for Astronomical Telegrams -- Image credits

CBAT "Transient Object Followup Reports"

PSN J15573523+1801476

PSN J15573523+1801476   2014 05 22.72  *  15 57 35.23 +18 01 47.6  17.4 U    0E   7N            9 9



2014 05 22.72

We discovered this object on May 22.72 2014 UT in the Tsinghua University-NAOC Transient Survey (TNTS), and the magnitude of the object on unfiltered CCD was about 17.4 mag. Discovery and reference images: http://www.thca.tsinghua.edu.cn/~wangxf/TNTS/PSNJ15573523+1801476.png




2014 05 25.424

This possible supernova in CGCG 108-18 was detected with 2 x 10 min images using a clear filter Photometry: Mag 17.20 +/- 0.10 C (V for ref; USNOA2) Astrometry: RA 15 57 35.27 Dec +18 01 46.0 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@N02/14084280899/




2014 05 29.9266

This transient was observed on 2014 05 29.9266 by Gianluca Masi, remotely using the 17"-f/6.8 corrected Dall-Kirkham robotic unit part of the Virtual Telescope Project facility, at Bellatrix Astronomical Observatory in Ceccano, Italy. 180-seconds exposures, unfiltered, show the source at mag. 17.5 (R mags for the reference stars from UCAC-4). We also performed astrometry, getting the following end figures: 35.25; 47.1 (J2000.0, mean residuals of 0.2" on both axes).



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