Discovery certificate for object 2018ddb
TNS Astronomical Transient Report No. 19985 [ 2018TNSTR.928....1S ]

Date Received (UTC): 2018-07-05 12:40:23
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 2018ddb
Discoverer internal name: ASASSN-18oe
Coordinates (J2000): RA = 00:02:49.706 (0.70711) DEC = -66:11:06.14 (-66.18504)
Discovery date: 2018-07-05 00:57:36 (JD=2458304.54)

Potential host galaxy: IC 5380

Remarks: In two epochs, unknown redshift host

Photometry

Discovery (first detection):
Discovery date: 2018-07-05 00:57:36
Flux: 16.6 ABMag
Filter: g-Sloan
Instrument: Payne-Gaposchkin
Telescope: ASASSN-Payne-Gaposchkin

Last non-detection:
Last non-detection date: 2018-06-29 06:00:00
Limiting flux: 17 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/2018ddb