Central Bureau for Astronomical Telegrams

Central Bureau for Astronomical Telegrams -- Image credits

CBAT "Transient Object Followup Reports"

PSN J02262331+2739348

PSN J02262331+2739348   2014 10 31.84  *  02 26 23.31 +27 39 34.8  17.4 U   38W  18N  U1899     9 1

2014 10 31.84

F. Ciabattari, E. Mazzoni and S. Donati report the discovery of an apparent supernova (unfiltered magnitude = 17.4)on images (limiting magnitude 19.5) obtained on October 31.84 and November 01.96 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. = 02h26m23s.31, Decl. = +27°39'34".8 (equinox 2000.0, astrometry with respect to UCAC-2 stars) which is 38 arcsec West and 18 arcsec North of the centre of Galaxy UGC 1899. The signal is visible, at the limit of detection, also in our images of 26 October 2014 (limiting magnitude = 19.5).

2014 10 30.9419

Simone Leonini, Siena, Italy, report the pre-discovery by S. Leonini, M. Conti, G. Guerrini, P. Rosi and L.M. Tinjaca Ramirez of the PSN in UGC01899 (mag. +17.42CR +/-0.16 – USNO B1 catalogue) on unfiltered CCD image (limiting mag. about +19.5) taken on 2014 October 30.9419 UT at the Montarrenti Observatory in the course of an automatic survey of the Italian Supernovae Search Project. Telescope: RC 0.53m f/8.7, Detector: U47. Position: R.A. 02h26m23.23s +/-0.21”, Decl. +27°39'35.2" +/-0.16” - equinox 2000.0. Last negative image: 2014 October 20.0535 UT (limiting mag. about +19.5). Pre-discovery image: http://www.astrofilisenesi.it/public/Sne/Uploads/pre-discovery UGC01899.jpg

2014 11 02.73909

This transient was observed on 2014 11 02.73909 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. 17.5 (R mags for the reference stars from UCAC-4). We also performed astrometry, getting the following end figures: 23.23; 34.9 (J2000.0, mean residuals of 0.2" on both axes).

2014 11 02.9219

This transient was observed on 2014 11 02.92190 by M.Caimmi - C92 Valdicerro Observatory - Loreto (AN) Italy - using 0.24-m f/6.5 SCT + CCD Atik 314L. Stack of 13 unfiltered b2x2 frames x 30 sec unguided exposures, show the source at 17.5 mag. End figures for astrometry were AR. 23.26s DEC. 34.5" position was measured from reference stars UCAC-4 catalogue. The image of this observation is available http://www.oav.name/public/PSN_J02262331+2739348_20141102,9219.jpg

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