Central Bureau for Astronomical Telegrams

Central Bureau for Astronomical Telegrams -- Image credits

CBAT "Transient Object Followup Reports"

PSN J23470787+2929115

PSN J23470787+2929115   2013 01 25.5804*  23 47 07.87 +29 29 11.5  17.5 U   33E  11N  N7753     R 6


2013 01 25.5804

POSSIBLE SUPERNOVA IN NGC 7753 Zhijian Xu(Nanjing,Jiangsu,China) and Xing Gao (Urumqi,Xinjiang,China), report the discovery of a possible supernova (mag approximately 17.5) on a 40-s survey image (limiting mag about 18.0) taken by Xing Gao in Xingming Observation Sky Survey(C42) around Jan.25.58041 UT.using an unfiltered CCD ( + Celestron C14 Schmidt-Cassegrain telescope D=356-mm @f/6.9 ). The new object approximately located at R.A.=23h 47m 07s.87 Decl.=+29°29'11".5(equinox 2000.0). Which is about 34.3" east and 11.3" north of the center of the NGC 7753. Nothing is visible at this position on archival images taken on Jan.19(limiting mag 18.0),Jan.20(limiting mag 17.8),Dec.09,2012(limiting mag 19.0) or on the DSS from Oct.01,1991(limiting mag about 19.5). NET USNO-A2.0 XM57ZX C2013 01 25.58041 23 47 07.87 +29 29 11.5 17.5 V C42 All images can be seen from: http://www.xjltp.com/XOSS/XM57ZX/XM57ZX.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.



2013 01 25.7299

Is reported the indipendent detection of the same object in two CCD unfiltered images taken with the 0,28 mt. f/6,3 "Vittore Maioni" Telescope of the Col Drusciè Obs. (Cortina d'Ampezzo - Italy), during of the Italian Supernovae Search Project, at 2013 January 25.7299 (17:31 u.t.). The new object is located at AR 23 47 07.78 and DEC +29 29 09.4 (epoch 2000.0) which is about 43 arcsec East and 9 arcsec North of the galaxy nucleus of NGC7753. The approximate visual unfiltered magnitude is about +17.0 (Limiting magnitude about +18.0). Nothing is visible in images taken with the same instrument at 2012 december 10th. Image of the possible SN is posted here: http://www.cortinastelle.it/CROSS_20130125_173125_NGC7753_60_Luminance_2_Maioni.jpg Alessandro Dimai



2013 01 26.0770

PSN observed at coordinates 23 47 07.79 +29 29 11.6 (UCAC3). Magnitude 17.3 U +/- 0.1. Limiting magnitude 19.3 . Sum of 3 x 240-sec images. Nothing visible at these coordinates other than galaxy background. Observer: R. A. Koff, Antelope Hills Observatory, Bennett, Colorado USA (H09). Image posted at: http://antelopehillsobservatory.org/SNpictures/PSNJ23470787+2929115final.jpg



2012 01 27.5669

Stack of 3 x 90-sec images, magnitude 16.8 U. Xingming Observation Sky Survey(C42). Observers Zhijian Xu,Xing Gao, Measurers Zhijian Xu. Follow-up image of the possible SN is posted here: http://www.flickr.com/photos/75341417@N06/8419303021/in/photostream



2013 01 28.0885

L. Elenin (Lyubertsy, Russia) and I. Molotov (Moscow, Russia) confirm an apparent supernova PSN J23470787+2929115 in NGC 7753. Object visible on 3x300sec images remotely taken at ISON-NM Observatory (Mayhill, NM, USA) with 0.45-m f/2.8 telescope + CCD (KAF09000) on Jan. 28.0885. Object located at 23h 47m 07s.71 +/- 0".08, +29d 29' 12".0 +/- 0".07 (UCAC-4) with magnitude 16.5U (mag. limit ~19.6m). Nothing is visible at this position on the POSS and POSSII images. Image of PSN J23470787+2929115 available at http://spaceobs.org/images/TOCP/PSNJ23470787+2929115-20130128.png



2013 02 02.5750

Stack of 3 x 90-sec images, magnitude 15.6 U. Xingming Observation Sky Survey(C42). Observers Zhijian Xu,Xing Gao, Measurers Zhijian Xu. Follow-up image of the possible SN is posted here:http://www.flickr.com/photos/75341417@N06/8441291400/in/photostream


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