Central Bureau for Astronomical Telegrams

CBAT "Transient Object Followup Reports"

PSN J09002002+5229280

PSN J09002002+5229280   2014 04 19.7172*  09 00 20.02 +52 29 28.0  16.2 U    3W  11S  U4713     R 9

2014 04 19.7172

Zhijian Xu(Nanjing,Jiangsu,China) and Xing Gao (Urumqi,Xinjiang,China), report the discovery of a possible supernova (mag approximately 16.2) on several 40-s survey images (limiting mag about 19.0) taken by Xing Gao in Xingming Observation Sky Survey(C42) around Apr.19.71716 UT.using an unfiltered CCD ( + Celestron C14 Schmidt-Cassegrain telescope D=356-mm @f/6.9 ). The new object approximately located at R.A.=09h 00m 20s.02 Decl.=+52°29'28".0(equinox 2000.0). Which is about 2.7" west and 11.2" south of the center of the UGC 4713. Nothing is visible at this position on archival images taken on Mar.22(limiting mag 18.5),Mar.26(limiting mag 19.0), or on the DSS from Feb.9,1991(limiting mag about 19.5). NET USNO-A2.0 XM67ZX C2014 04 19.71716 09 00 20.02 +52 29 28.0 16.2 V C42 All images can be seen from: http://www.xjltp.com/XOSS/XM67ZX/XM67ZX.htm C42,Xingming Observatory,Mt. Nanshan. Observers Z.Xu,X.Gao,Measurers Z.Xu 0.36-m f/6.9 Schmidt-Cassegrain telescope and CCD.

2014 04 16.84

F. Ciabattari and E. Mazzoni report their pre-discovery detection of PSN J09002002+5229280 (unfiltered magnitude = 17.6 with respect to USNO-A2 field stars) on an image (limiting magnitude 19.5) obtained on April 16.84 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. Object is located at A.R. = 09h00m20s.14, Decl. = +52°29'29".2 (equinox 2000.0, astrometry with respect to USNO B1 stars). Image at https://www.flickr.com/photos/snimages/13934647542/

2014 04 21.783

This transient was observed on 2014 04 21.783 by Gianluca Masi, Francesca Nocentini and Patrick Schmeer, 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. 120-seconds exposures, unfiltered, show the source at mag. 16.1 (R mags for the reference stars from UCAC-4). We also performed astrometry, getting the following end figures: 19.99; 27.7 (J2000.0, mean residuals of 0.2" on both axes).

2014 04 24.6402

Mag. = 16.2 with 4 x 60s images using an unfiltered CCD +Celestron C14 Schmidt-Cassegrain telescope D=356-mm f/6.9. Xingming Observation Sky Survey(C42), by Zhijian Xu & Xing Gao. Follow-up image posted at URL:http://njzhijian.lamost.org/PSN%20J09002002+5229280-0424.jpg