Discovery certificate for object 2015cv
TNS Astronomical Transient Report No. 33832 [ 2019TNSTR.653....1T ]

Date Received (UTC): 2019-04-28 09:35:21
Sender: Mr. Richard Nowell
Source Group: None

Ine Theunissen-Limpens report/s the discovery of a new astronomical transient.

IAU Designation: AT 2015cv
Coordinates (J2000): RA = 15:47:45.624 (236.9401) DEC = +28:38:37.32 (28.6437)
Discovery date: 2015-04-08 07:23:11 (JD=2457120.8077662)

Potential host galaxy: NGC 6001
Host redshift: 0.033224

Remarks: This transient was first discussed by Ine Theunissen on the Galaxy Zoo website here: https://www.zooniverse.org/projects/zookeeper/galaxy-zoo/talk/1268/976815. Christine Macmillan also took part in the discussion.

Photometry

Discovery (first detection):
Discovery date: 2015-04-08 07:23:11
Flux: 17.1 ABMag
Filter: z-Sloan
Instrument: DECAM
Telescope: CTIO - 4-m Victor M. Blanco Telescope

Remarks: The z-band Apparent magnitude was calculated by Richard Nowell using APT and reference star: SDSS J154752.53+283828.7 http://skyserver.sdss.org/dr14/en/tools/explore/Summary.aspx?id=1237662305661681791. A z-band Absolute magnitude of -18.81 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/2015cv