Discovery certificate for object 2013kj
TNS Astronomical Transient Report No. 49754 [ 2019TNSTR2127....1K ]

Date Received (UTC): 2019-10-20 12:12:36
Sender: Mr. Richard Nowell
Source Group: None

Marco A. Kovic report/s the discovery of a new astronomical transient.

IAU Designation: AT 2013kj
Coordinates (J2000): RA = 00:03:21.096 (0.8379) DEC = +01:00:35.28 (1.0098)
Discovery date: 2013-09-11 07:13:09 (JD=2456546.8007986)

Potential host galaxy: SDSS J000321.15+010033.9
Host redshift: 0.145169

Remarks: This transient was first observed by Marco Kovic in a discussion started by GregBemis on the Galaxy Zoo website here: https://www.zooniverse.org/projects/zookeeper/galaxy-zoo/talk/subjects/35622565. Leonie van Vliet, Yannis Epitropoulos (QuadSun) and participant ejmc64 also took part in the discussion.

Photometry

Discovery (first detection):
Discovery date: 2013-09-11 07:13:09
Flux: 20.02 ABMag
Filter: g-Sloan
Instrument: DECAM
Telescope: CTIO - 4-m Victor M. Blanco Telescope

Remarks: The g-band Apparent magnitude was calculated by Richard Nowell using APT and reference star: SDSS J000322.87+005953.5 http://skyserver.sdss.org/dr14/en/tools/explore/Summary.aspx?id=1237663278465024136. The g-band Absolute magnitude -19.03 was also calculated.

Last non-detection:
Archival info: SDSS

Details of the new object can be viewed here: https://wis-tns.weizmann.ac.il/object/2013kj