Discovery certificate for object 2016irp
TNS Astronomical Transient Report No. 7193 [ 2016TNSTR.990....1G ]

Date Received (UTC): 2016-12-03 14:36:02
Sender: Mr. Zhijian Xu
Source Group: XOSS

Wei Gao,Xing Gao report/s the discovery of a new astronomical transient.

IAU Designation: AT 2016irp
Coordinates (J2000): RA = 01:34:01.570 (23.506542) DEC = +30:42:39.90 (30.711083)
Discovery date: 2016-12-03 13:22:28 (JD=2457726.0572685)

Potential host galaxy: M33

Remarks: This possible nova was discovered by Xingming ObservationSky Survey(C42) around Dec .03.5573 UT. using an unfiltered CCD (+ 0.5-m f/4 reflector + CCD). The transient approximately located at R.A. =01h34m01.57s Decl.=+30°42'39".8(equinox 2000.0).Which is about 137.7" east and 182.8" north of the center of the NGC598(M33).

Photometry

Discovery (first detection):
Discovery date: 2016-12-03 13:22:28
Flux: 17.5 VegaMag
Filter: Clear-
Instrument: Other
Telescope: Other

Remarks: This possible nova was discovered by Xingming ObservationSky Survey(C42) around Dec .03.5573 UT. using an unfiltered CCD (+ 0.5-m f/4 reflector + CCD). The transient approximately located at R.A. =01h34m01.57s Decl.=+30°42'39".8(equinox 2000.0).Which is about 137.7" east and 182.8" north of the center of the NGC598(M33).

Last non-detection:
Last non-detection date: 2016-12-01 13:53:49
Limiting flux: 19.9 VegaMag
Filter: Clear-
Instrument: Other
Telescope: Other

Remarks: Using 0.5-m f/4 reflector + CCD, nothing is visible at this position on archival images taken on Dec. 01 (limiting mag 19.9) .

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