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M31 Nova Candidate TSS J004242.3+410846

ATEL # 887; R. Quimby (University of Texas)
on 18 Sep 2006; 22:03 UT
Password Certification: Robert Quimby (

Subjects: Optical, Cataclysmic Variables, Nova, Transients

We report the discovery of an optical transient in M31 from unfiltered CCD images taken on Sept. 18.14 UT (about 16.7 mag) by the 0.45m ROTSE-IIIb telescope at the McDonald Observatory. The object is located at RA = 00h42m42.3s DEC = +41o08'46" (J2000), which is 23.3" west and 7' 22.4" south of the core of M31. TSS J004242.3+410846 is about 6' south of the possible nova reported by Burwitz et al. (ATel #884) and was not detected in ROTSE-IIIb data from Sept. 12.45 UT (limiting mag about 16.9). A finding chart for the transient can be found at:

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