IAU Central Bureau for Astronomical Telegrams

Central Bureau for Astronomical Telegrams -- Image credits

CBAT "Transient Object Followup Reports"

PSN J08593491+4555343

PSN J08593491+4555343   2015 03 12.81  *  08 59 34.91 +45 55 34.3  16.9 U    4E   4S  U4709     9 1



2015 03 12.81

F. Ciabattari, E. Mazzoni and G. Petroni report the discovery of an apparent supernova (unfiltered magnitude = 16.9) on images (limiting magnitude 19.5) obtained on March 12.81 UT and March 13.78 UT with a 0.5m Newtonian telescope + CCD FLI Proline 4710 camera at Borgo a Mozzano - Italy in the course of the Italian Supernovae Search Project. The new object is located at A.R. = 08h59m34s.91, Decl. = +45°55'34".3 (equinox 2000.0, astrometry with respect to UCAC-2 stars) which is 4 arcsec east and 4 arcsec south of the centre of Galaxy UGC 4709.




2015 03 14.90931

This transient was observed on 2015 03 14.90931 by Massimo Caimmi from C92 - Valdicerro Observatory - Loreto (AN) - Italy collaborating with ISSP (Italian Supernovae Search Project) using 0.24-m f/6.5 SCT and CCD Atik 314L. Stack of 30 unfiltered b2x2 frames x 30sec unguided exposures, show the source at 16.4 mag. End figures for astrometry were AR. 34.90s DEC. 33.1" position measured from reference stars UCAC-4 catalogue. The image of this observation is available http://www.oav.name/public/PSN J08593491+4555343_20150314.jpg




2015 03 22.88294

This transient was observed on 2015 03 22.88294 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. 16.2 (R mags for the reference stars from UCAC-4). We also performed astrometry, getting the following end figures: 34.89; 33.1 (J2000.0, mean residuals of 0.1" on both axes).



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