Discovery certificate for object 2015db
TNS Astronomical Transient Report No. 42872 [ 2019TNSTR1397....1K ]

Date Received (UTC): 2019-08-02 08:24:13
Sender: Mr. Richard Nowell
Source Group: None

Marco A. Kovic report/s the discovery of a new astronomical transient.

IAU Designation: AT 2015db
Coordinates (J2000): RA = 01:31:02.328 (22.7597) DEC = -10:17:15.00 (-10.2875)
Discovery date: 2015-08-18 09:40:24 (JD=2457252.9030556)

Potential host galaxy: 2MASX J01310241-1017122
Host redshift: 0.065135

Remarks: This transient was found by Marco Kovic using the Galaxy Zoo website here: https://www.zooniverse.org/projects/zookeeper/galaxy-zoo/talk/subjects/34211970.

Photometry

Discovery (first detection):
Discovery date: 2015-08-18 09:40:24
Flux: 21.3 ABMag
Filter: R-Cousins
Instrument: DECAM
Telescope: CTIO - 4-m Victor M. Blanco Telescope

Remarks: The Apparent r-band magnitude was taken from the values found on the DECaLS browser. An r-band Absolute magnitude of -16.0 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/2015db