Discovery certificate for object 2018gwo
TNS Astronomical Transient Report No. 23138 [ 2018TNSTR1459....1W ]

Date Received (UTC): 2018-09-28 03:45:39
Sender: Patrick Wiggins
Source Group: None

Patrick Wiggins report/s the discovery of a new astronomical transient.

IAU Designation: SN 2018gwo
Coordinates (J2000): RA = 12:08:38.910 (182.162125) DEC = +68:46:44.99 (68.779164)
Discovery date: 2018-09-28 02:41:31 (JD=2458389.6121644)

Potential host galaxy: NGC 4128

Remarks: P. Wiggins, Tooele, UT, USA, reports his discovery of a possible supernova (mag about 16.4) on an unfiltered CCD frame taken 2018 Sep 28 02:41:31 UT using a 0.35-m f/5.5 reflector near Erda, UT, USA. The new object is located at R.A. 12h08m38.91s, Decl. +68°46’44.99” (equinox 2000.0), about 54 arc seconds NE of the center of NGC 4128. Wiggins notes that nothing was visible at this position on an image taken the previous night on Sep 27.

Photometry

Discovery (first detection):
Discovery date: 2018-09-28 02:41:31
Flux: 16.4 ABMag
Filter: Clear-
Instrument: Other
Telescope: Other

Last non-detection:
Last non-detection date: 2018-09-27 02:44:12
Limiting flux: 17 ABMag
Filter: Clear-
Instrument: Other
Telescope: Other

Remarks: Re-examining the image taken on the 27th, there *may* have been something there, but very faint. The last image I took when there is nothing there was taken 2018-09-23 t 02:50:46

Details of the new object can be viewed here: https://wis-tns.weizmann.ac.il/object/2018gwo