Probable Supernova discovered by PSST

ATel #7484; D. Wright, K. W. Smith, S. J. Smartt (Queen's University Belfast), M. Huber, K. C. Chambers, H. Flewelling, M. Willman, N. Primak, A. Schultz, B. Gibson, E. Magnier, C. Waters, J. Tonry, R. J. Wainscoat (IfA, Hawaii), R. J. Foley (Illinois), S. W. Jha (Rutgers), A. Rest (STScI), D. Scolnic (Chicago/KICP)
on 8 May 2015; 21:36 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Stephen Smartt (s.smartt@qub.ac.uk)

Tweet

A bright transient, which is a probable supernova, has been discovered as part of the Pan-STARRS Survey for Transients (PSST). Information on all objects discovered by the Pan-STARRS Survey for Transients is available at http://star.pst.qub.ac.uk/ps1threepi/ (see Huber et al. ATel #7153). We will send all objects brighter than 18 mag as ATel alerts, while all other objects can be found on these webpages. The transient is rising ~ 0.3 mags per day in i-band, with current w-band magnitude of 18.19 +/- 0.02 on 20150507.

 
Name       | RA (J2000)  | Dec (J2000) | Disc. Date | Disc Mag | filter | Notes 
PS15aii    | 12 44 45.54 | +09 45 34.6 |  20150505  |  18.75   |   i    |  (1) 

(1) NED reports that the likely host (8.65 arcsec away) is VCC 2005 with spectroscopic z = 0.046589. At that redshift, the object would have an absolute magnitude of -17.68.