Discovery certificate for object 2018arb
TNS Astronomical Transient Report No. 17660 [ 2018TNSTR.460....1S ]

Date Received (UTC): 2018-04-08 07:21:46
Sender: Dr. Clay Sherrod
Source Group: ASO

Clay Sherrod report/s the discovery of a new astronomical transient.

IAU Designation: AT 2018arb
Coordinates (J2000): RA = 11:32:31.250 (173.130208) DEC = +53:03:09.37 (53.052603)
Discovery date: 2018-04-08 06:42:00 (JD=2458216.7791667)

Potential host galaxy: ngc3718

Remarks: P. Clay Sherrod, Arkansas Sky Observatories, Petit Jean Mountain, Arkansas, reports possible SN in NGC3718, mag. 19.4 (unfiltered) via CCD obtained 2018 April 08 06:42 UT, using the 0.51m f/5.9 astrograph. Object is located SW of center of NGC 3718, 66.8" in PA 209.7 deg, or at RA 11 32 31.25; DEC +53 03 09.37. Surveys on Jan 3, 2018 and March 13, 2018 reveal no star at this position.

Photometry

Discovery (first detection):
Discovery date: 2018-04-08 06:42:00
Flux: 19.48 VegaMag
Filter: V-Johnson
Instrument: Other
Telescope: Other

Remarks: 0.51m ASO astrograph, f/5.9 + CCD

Last non-detection:
Last non-detection date: 2018-03-13 05:40:00
Limiting flux: 20 VegaMag
Filter: V-Johnson
Instrument: Other
Telescope: Other

Remarks: 0.51m ASO astrograph, f/5.9 + CCD

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