Discovery certificate for object 2016cpx
TNS Astronomical Transient Report No. 2585

Date Received (UTC): 2016-06-03 12:58:49
Sender: Mr. Stuart Parker
Source Group: BOSS

Stuart Parker report/s the discovery of a new astronomical transient.

IAU Designation: AT 2016cpx
Coordinates (J2000): RA = 21:53:23.36 (328.347333) DEC = -68:57:11.30 (-68.953139)
Discovery date: 2016-06-02 15:55:41 (JD=2457542.163669)

Potential host galaxy: IC5138

Remarks: Stuart Parker, Canterbury, New Zealand, reports the discovery of an apparent supernova (red mag 17.9) on a 30-s unfiltered CCD image (limiting mag 18.5) taken by himself with a 30-cm Astro-Tech AT12RC Ritchey-Chretien astrograph (+ ST10 camera) at his Parkdale Observatory in the course of the Backyard Observatory Supernova Search.Which is 2N"and 10E"of the nucleus of the galaxy IC5138.

Photometry

Discovery (first detection):
Discovery date: 2016-06-02 15:55:41
Flux: 17.9 Other
Filter: Other-
Instrument: Other
Telescope: Other

Remarks: Easily seen.Reference stars from USNO-B and UCAC4 catalogues

Last non-detection:
Last non-detection date: 2016-05-09 15:00:00
Limiting flux: 15 Other
Filter: Other-
Instrument: Other
Telescope: Other

Remarks: Very poor image would not of got to mangitude required

Details of the new object can be viewed here: https://wis-tns.weizmann.ac.il/object/2016cpx