Discovery certificate for object 2017kdt
TNS Astronomical Transient Report No. 31816 [ 2019TNSTR.471....1M ]

Date Received (UTC): 2019-04-01 08:31:16
Sender: Mr. Richard Nowell
Source Group: None

C. Macmillan, M. A. Kovic report/s the discovery of a new astronomical transient.

IAU Designation: AT 2017kdt
Coordinates (J2000): RA = 14:29:48.408 (217.4517) DEC = +01:20:15.00 (1.3375)
Discovery date: 2017-03-01 08:46:12 (JD=2457813.8654167)

Potential host galaxy: SDSS J142948.59+012012.4
Host redshift: 0.14315

Remarks: This transient was discovered in a discussion on the Galaxy Zoo website started by participant timbertom1957 here: https://www.zooniverse.org/projects/zookeeper/galaxy-zoo/talk/subjects/27362279. Also taking part in the discussion were Ine Theunissen-Limpens, Sylvia Beer and participant Kendawg42.

Photometry

Discovery (first detection):
Discovery date: 2017-03-01 08:46:12
Flux: 20.44 ABMag
Filter: R-Cousins
Instrument: DECAM
Telescope: CTIO - 4-m Victor M. Blanco Telescope

Remarks: The r-band magnitude was found by using the DECaLS DR7 catalogue which has a value already calculated.

Last non-detection:
Archival info: SDSS

Details of the new object can be viewed here: https://wis-tns.weizmann.ac.il/object/2017kdt