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A Supernova from the Catalina Sky Survey

ATEL # 1510; A.J. Drake, S.G. Djorgovski, R. Williams, A. Mahabal, M.J. Graham (Caltech); E.C. Beshore, S.M. Larson (LPL/UA); E. Christensen (Gemini Observatory);
on 6 May 2008; 0:27 UT
Password Certification: Andrew J. Drake (

Subjects: Optical, Request for Observations, Nova, Supernova, Transients

We have detected a likely Supernova in Catalina Sky Survey (CSS) images obtained at the Mt. Bigelow 0.7m Catalina Schmidt Telescope on 5 May 2008 UT. The transient is unresolved, and at the following J2000 coordinates:

CSS080505:155415+105825 2008-05-05 UT 09:26:53 RA 15:54:15.15 Dec 10:58:25.0 Mag 16.7

For finding charts and discovery images please see:

The object is near the edge of galaxy FGC 1965 (z=0.0362, g ~ 17.4, r ~ 16.8, i ~ 16.4, (m-M) = 35.9). The transient is consistent with a supernova at this distance. The CSS discovery observations consist of four images spanning ~ 30 minutes. The object is also clearly seen in images taken on 31 March, 7 April, 13 April, 28 April UT. It was not present in earlier CSS images including those taken on 4 March UT. The transient is not seen in archival PQ or SDSS images covering this location. Spectroscopic follow-up is requested.

All stationary CSS optical transients are detected and published as VOEvents in real-time at and here (RSS)

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R. E. Rutledge , Editor
ATEL Mirror v1.0 Updates