Discovery certificate for object 2012iw
TNS Astronomical Transient Report No. 53187 [ 2019TNSTR2429....1K ]

Date Received (UTC): 2019-11-23 12:03:15
Sender: Mr. Richard Nowell
Reporting Group: None     Discovery Data Source: None

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

IAU Designation: AT 2012iw
Coordinates (J2000): RA = 02:32:39.670 (38.165292) DEC = +00:36:59.83 (0.616619)
Discovery date: 2012-10-06 12:23:01.000 (JD=2456207.0159838)

Potential host galaxy: UGC 2019
Host redshift: 0.020698

Remarks: This transient was first observed by Marco Kovic on the Galaxy Zoo website here: https://www.zooniverse.org/projects/zookeeper/galaxy-zoo/talk/subjects/28484234. Sylvia Beer started the discussion, which also included Christine Macmillan and miai (username).

Photometry

Discovery (first detection):
Discovery date: 2012-10-06 12:23:01.000
Flux: 18.14 ABMag
Filter: r-Sloan
Instrument: GPC1
Telescope: Pan-STARRS

Remarks: The r-band Apparent magnitude was calculated by Richard Nowell using APT and reference star: SDSS J023243.07+003710.0 http://skyserver.sdss.org/dr14/en/tools/explore/Summary.aspx?id=1237663784751005851 (DECaLS DR7 values). The r-band Absolute magnitude of -16.67 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/2012iw