Discovery certificate for object 2000gl
TNS Astronomical Transient Report No. 32127 [ 2019TNSTR.511....1N ]

Date Received (UTC): 2019-04-07 08:34:25
Sender: Mr. Richard Nowell
Source Group: None

R. Nowell, J. Koerber report/s the discovery of a new astronomical transient.

IAU Designation: AT 2000gl
Coordinates (J2000): RA = 10:19:28.865 (154.870271) DEC = +02:53:19.99 (2.888887)
Discovery date: 2000-05-04 04:49:30 (JD=2451668.7010417)

Potential host galaxy: SDSS J101928.41+025319.8
Host redshift: 0.161

Remarks: This transient was discovered in a discussion started by John Koerber on the Galaxy Zoo website here: https://www.zooniverse.org/projects/zookeeper/galaxy-zoo/talk/subjects/28490369. M.A. Kovic also joined in the discussion.

Photometry

Discovery (first detection):
Discovery date: 2000-05-04 04:49:30
Flux: 20.4 ABMag
Filter: r-Sloan
Instrument: SDSS-Spec
Telescope: Sloan Digital Sky Survey

Remarks: The r-band Apparent magnitude was calculated by R. Nowell using APT and reference star: SDSS J101935.63+025320.2 http://skyserver.sdss.org/dr14/en/tools/explore/Summary.aspx?id=1237653665797898257. An additional r-band Absolute magnitude of -18.89 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/2000gl