Discovery certificate for object 2018mn
TNS Astronomical Transient Report No. 16695 [ 2018TNSTR.140....1R ]

Date Received (UTC): 2018-02-01 21:16:31
Sender: Dr. Gautham Narayan
Source Group: None

A. Rest (STScI), A. Zenteno(NOAO/CTIO), Giovanni Strampelli (STScI), B. E. Tucker (Mt Stromlo Observatory, ANU), P. M. Garnavich (Notre Dame), S. Margheim (Gemini Observatory), D. Kasen (UCB/LBL), R. Olling, E. Shaya (U Maryland), G. Narayan (STScI), A. Villar (CfA), F. Forster (U. de Chile), R. Mushotzky (UMD), R. Chris Smith (NOAO/CTIO) report/s the discovery of a new astronomical transient.

IAU Designation: AT 2018mn
Discoverer internal name: C16-0012
Coordinates (J2000): RA = 08:50:07.572 (132.53155) DEC = +13:18:50.00 (13.313889)
Discovery date: 2018-01-22 17:27:00 (JD=2458141.22709)

Potential host galaxy: SDSS J085007.67+131849.8
Host redshift: 0.04

Remarks: 5 i-band detections. Also detected in PS1 w-band images. 7.3" from EPICID=211512266. On K2 pixel row 721043.

Photometry

Discovery (first detection):
Discovery date: 2018-01-22 17:27:00
Flux: 20.809 ABMag
Filter: i-Sloan
Instrument: DECAM
Telescope: CTIO - 4-m Victor M. Blanco Telescope

Last non-detection:
Archival info: SDSS
Remarks: Not detected in PS1 imaging prior to Jan 11, 2018 or in prior SDSS imaging

Details of the new object can be viewed here: https://wis-tns.weizmann.ac.il/object/2018mn