Discovery certificate for object 2017kdv
TNS Astronomical Transient Report No. 34848 [ 2019TNSTR.765....1N ]

Date Received (UTC): 2019-05-13 08:25:39
Sender: Mr. Richard Nowell
Reporting Group: None     Discovery Data Source: None

Richard Nowell report/s the discovery of a new astronomical transient.

IAU Designation: AT 2017kdv
Coordinates (J2000): RA = 13:15:00.994 (198.754142) DEC = +09:57:21.61 (9.956002)
Discovery date: 2017-03-06 06:49:59.000 (JD=2457818.7847106)

Potential host galaxy: SDSS J131500.97+095723.2
Host redshift: 0.099

Remarks: This transient was first discussed on the Galaxy Zoo website by Richard Nowell here: https://www.zooniverse.org/projects/zookeeper/galaxy-zoo/talk/1268/995374. The redshift was taken from the SDSS Explorer page, but might be unreliable:http://skyserver.sdss.org/dr14/en/tools/explore/Summary.aspx?id=1237662238009262233. No other redshift values could be found. Ine Theunissen also took part in the discussion.

Photometry

Discovery (first detection):
Discovery date: 2017-03-06 06:49:59.000
Flux: 20.78 ABMag
Filter: g-Sloan
Instrument: DECAM
Telescope: CTIO - 4-m Victor M. Blanco Telescope

Remarks: The g-band Apparent magnitude was taken from the DECaLS DR7 catalogue. A g-band Absolute magnitude of -17.49 was also calculated (see comment about redshift).

Last non-detection:
Archival info: SDSS

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