Discovery certificate for object 2017A
TNS Astronomical Transient Report No. 7638 [ 2017TNSTR...8....1D ]

Date Received (UTC): 2017-01-02 02:51:48
Sender: Mr. Grzegorz Duszanowicz
Source Group: RANSSP

Grzegorz Duszanowicz, Michal Zolnowski report/s the discovery of a new astronomical transient.

IAU Designation: SN 2017A
Coordinates (J2000): RA = 15:57:28.350 (239.368125) DEC = +30:03:39.10 (30.060861)
Discovery date: 2017-01-01 05:26:01 (JD=2457754.7264005)

Potential host galaxy: UGC10104

Remarks: Grzegorz Duszanowicz and Michał Żołnowski report a possible supernova discovery in galaxy UGC 10104 (PGC 56479) at mag 17.4mg. PSN is located 5".0 east and 3".0 north of the galaxy center. Newton 0.40m f/3.8 and CCD, Luminance filter, Rantiga Observatory D03, Italy.

Photometry

Discovery (first detection):
Discovery date: 2017-01-01 05:26:01
Flux: 17.4 VegaMag
Filter: L-
Instrument: Other
Telescope: Other

Remarks: Newton 0.40m f/3.8 and CCD, Luminance filter, Rantiga Observatory D03, Italy.

Last non-detection:
Last non-detection date: 2016-08-28 21:02:52
Limiting flux: 18.9 VegaMag
Filter: L-
Instrument: Other
Telescope: Other

Remarks: Referens picture: nothing visible at the given position. Newton 0.40m f/3.8 and CCD, Luminance filter, Rantiga Observatory D03, Italy.

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