Discovery certificate for object 2017ken
TNS Astronomical Transient Report No. 65313 [ 2020TNSTR.901....1T ]

Date Received (UTC): 2020-03-29 14:23:47
Sender: Mr. Richard Nowell
Reporting Group: None     Discovery Data Source: None

Ine Theunissen-Limpens report/s the discovery of a new astronomical transient.

IAU Designation: AT 2017ken
Coordinates (J2000): RA = 14:52:42.744 (223.1781) DEC = +21:33:06.48 (21.5518)
Discovery date: 2017-03-27 08:06:09.000 (JD=2457839.8376042)

Potential host galaxy: WISEA J145242.58+213305.0
Host redshift: 0.111121

Remarks: This transient was first observed by Ine Theunissen on the Galaxy Zoo Mobile website here: https://www.zooniverse.org/projects/mikewalmsley/galaxy-zoo-mobile/talk/subjects/40292334

Photometry

Discovery (first detection):
Discovery date: 2017-03-27 08:06:09.000
Flux: 20.19 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 J145241.26+213345.2 http://skyserver.sdss.org/dr14/en/tools/explore/Summary.aspx?id=1237665548356288565. The g-band Absolute magnitude of -18.27 was also calculated.

Last non-detection:
Archival info: SDSS

Details of the new object can be viewed here: https://www.wis-tns.org/object/2017ken