Discovery certificate for object 2018dej
TNS Astronomical Transient Report No. 20031 [ 2018TNSTR.945....1S ]

Date Received (UTC): 2018-07-08 02:11:26
Sender: Prof. Krzysztof Stanek
Source Group: ASAS-SN

K. Z. Stanek, for the ASAS-SN team report/s the discovery of a new astronomical transient.

IAU Designation: SN 2018dej
Discoverer internal name: ASASSN-18op
Coordinates (J2000): RA = 21:09:46.142 (317.44226) DEC = -50:14:12.41 (-50.23678)
Discovery date: 2018-07-06 23:31:12 (JD=2458306.48)

Potential host galaxy: GALEXASC J210946.18-501414.9

Remarks: In several epochs, unknown redshift, blue, faint host galaxy

Photometry

Discovery (first detection):
Discovery date: 2018-07-06 23:31:12
Flux: 17.4 ABMag
Filter: g-Sloan
Instrument: Payne-Gaposchkin
Telescope: ASASSN-Payne-Gaposchkin

Last non-detection:
Last non-detection date: 2018-06-20 05:16:48
Limiting flux: 18.8 ABMag
Filter: g-Sloan
Instrument: Paczynski
Telescope: ASASSN-Paczynski


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