Discovery certificate for object 2017kds
TNS Astronomical Transient Report No. 30189 [ 2019TNSTR.279....1T ]

Date Received (UTC): 2019-02-26 10:00:37
Sender: Mr. Richard Nowell
Source Group: None

I. Theunissen-limpens, R. Nowell, A. Jonkeren report/s the discovery of a new astronomical transient.

IAU Designation: AT 2017kds
Coordinates (J2000): RA = 11:41:08.774 (175.286558) DEC = +10:20:03.03 (10.334175)
Discovery date: 2017-03-31 03:35:30 (JD=2457843.6496528)

Potential host galaxy: 2MASX J11410850+1020145
Host redshift: 0.118578

Remarks: This transient was first noticed by Ine Theunissen-limpens in a discussion on the Galaxy Zoo website here: https://www.zooniverse.org/projects/zookeeper/galaxy-zoo/talk/subjects/28488522. Also taking part in the discussion were CeciliaB, Alexander Jonkeren and Richard Nowell.

Photometry

Discovery (first detection):
Discovery date: 2017-03-31 03:35:30
Flux: 17.72 ABMag
Filter: R-Cousins
Instrument: DECAM
Telescope: CTIO - 4-m Victor M. Blanco Telescope

Remarks: The r-band Apparent magnitude of 17.72 is taken from the DECaLS DR7 catalogue. An Absolute magnitude of -20.94 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/2017kds