Discovery certificate for object 2018djd
TNS Astronomical Transient Report No. 20187 [ 2018TNSTR.964....1B ]

Date Received (UTC): 2018-07-12 21:04:49
Sender: Prof. Krzysztof Stanek
Source Group: ASAS-SN

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

IAU Designation: SN 2018djd
Discoverer internal name: ASASSN-18pb
Coordinates (J2000): RA = 02:14:33.830 (33.64096) DEC = -00:45:56.77 (-0.76577)
Discovery date: 2018-07-12 08:23:59 (JD=2458311.8499884)

Potential host galaxy: NGC 0863
Host redshift: 0.026385

Remarks: Confirmed in follow-up imaging, on the rise; the host galaxy is a well-studied Seyfert 1 AGN, but this SN candidate is offset from the core

Photometry

Discovery (first detection):
Discovery date: 2018-07-12 08:23:59
Flux: 16.2 VegaMag
Filter: V-Johnson
Instrument: Cassius
Telescope: ASASSN-Cassius

Last non-detection:
Last non-detection date: 2018-07-05 02:38:24
Limiting flux: 17.7 ABMag
Filter: g-Sloan
Instrument: Payne-Gaposchkin
Telescope: ASASSN-Payne-Gaposchkin


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