Discovery certificate for object 2017gsf
TNS Astronomical Transient Report No. 13620 [ 2017TNSTR1000....1T ]

Date Received (UTC): 2017-09-14 20:58:10
Sender: ATLAS (ATLAS_Bot1)
Source Group: ATLAS

J. Tonry, B. Stalder, L. Denneau, A. Heinze, H. Weiland (IfA, University of Hawaii), A. Rest (STScI), K.W. Smith, S. J. Smartt (Queen's University Belfast) report/s the discovery of a new astronomical transient.

IAU Designation: AT 2017gsf
Discoverer internal name: ATLAS17kqk
Coordinates (J2000): RA = 22:41:21.551 (340.339795833) DEC = +79:44:07.75 (79.735485)
Discovery date: 2017-08-31 12:31:40 (JD=2457997.0219907)



Photometry

Discovery (first detection):
Discovery date: 2017-08-31 12:31:40
Flux: 17.63 ABMag
Filter: orange-ATLAS
Instrument: ACAM1
Telescope: ATLAS Haleakala

Last non-detection:
Last non-detection date: 2017-07-29 12:57:36
Limiting flux: 19.14 ABMag
Filter: orange-ATLAS
Instrument: ACAM1
Telescope: ATLAS Haleakala


Details of the new object can be viewed here: https://wis-tns.weizmann.ac.il/object/2017gsf