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Discovery and Classification of SN2017dez by ATLAS

ATel #10310; J. Tonry, B. Stalder, L. Denneau, A. Heinze, H. Weiland (IfA, Univ. of Hawaii), A. Rest (STScI), S. J. Smartt, K. W. Smith (QUB), M. Huber, T. Lowe, K. C. Chambers (IfA, Univ. of Hawaii)
on 22 Apr 2017; 16:52 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Ken Smith (k.w.smith@qub.ac.uk)

Subjects: Optical, Supernovae

We report the following transient found by the ATLAS survey (see Tonry et al. ATel #8680). The units are operational on Haleakala and Mauna Loa and robotically surveying the sky. Two filters are used, cyan and orange (denoted c and o, all mags in AB system). More information is on http://www.fallingstar.com .

A spectrum was taken on the UH 2.2m + SNIFS spectrometer on 20170421, and the transient is confirmed to be a SN of the following type (from SNID).

Name      | ATLAS Name | RA (J2000)  | Dec (J2000) | Disc. MJD | Disc. Date  | Disc Mag | type |   z    |  phase  | Notes 
SN2017dez | ATLAS17erb | 16:27:30.92 | +49:41:44.6 | 57862.56  | 20170419.56 |  17.91 c | SNIa | 0.043  | -1 week |  1. 

1. SDSS DR12 reports that the likely host (3.84" away) is SDSS J162731.04+494141.0.