Discovery certificate for object 2017kep
TNS Astronomical Transient Report No. 70043 [ 2020TNSTR1275....1T ]

Date Received (UTC): 2020-05-09 09:57:33
Sender: Ms. Ine Theunissen
Reporting Group: None     Discovery Data Source: None

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

IAU Designation: AT 2017kep
Coordinates (J2000): RA = 15:02:28.824 (225.6201) DEC = +24:22:22.44 (24.3729)
Discovery date: 2017-03-28 08:12:31.000 (JD=2457840.8420255)

Potential host galaxy: SDSS J150229.11+242223.9
Host redshift: 0.070226

Remarks: This transient was first discovered by Ine Theunissen on the Galaxy Zoo Mobile website here: https://www.zooniverse.org/projects/mikewalmsley/galaxy-zoo-mobile/talk/2640/1373032. Richard Nowell and Sam Deen also took part in the discussion started by Ine Theunissen on the Galaxy Zoo website here: https://www.zooniverse.org/projects/zookeeper/galaxy-zoo/talk/1269/1203627.

Photometry

Discovery (first detection):
Discovery date: 2017-03-28 08:12:31.000
Flux: 19.29 ABMag
Filter: R-Cousins
Instrument: DECAM
Telescope: CTIO - 4-m Victor M. Blanco Telescope

Remarks: The r-band Apparent magnitude was calculated by Ine Theunissen using APT and reference star: SDSS J150237.32+242105.3 http://skyserver.sdss.org/dr14/en/tools/explore/Summary.aspx?id=1237665429712535699. The r-band Absolute magnitude of -18.14 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/2017kep