Discovery certificate for object 2017ism
TNS Astronomical Transient Report No. 15184 [ 2017TNSTR1368....1D ]

Date Received (UTC): 2017-12-04 20:07:01
Sender: Gaia (Gaia_Bot1)
Source Group: GaiaAlerts

A. Delgado, D. Harrison, S. Hodgkin, M. van Leeuwen, G. Rixon, A. Yoldas (University of Cambridge), on behalf of Gaia Alerts team report/s the discovery of a new astronomical transient.

IAU Designation: AT 2017ism
Discoverer internal name: Gaia17ddi
Coordinates (J2000): RA = 19:40:24.020 (295.100083) DEC = +28:06:04.21 (28.101169)
Discovery date: 2017-12-02 19:33:36 (JD=2458090.315)


Remarks: slowly rising galactic plane transient, candidate microlensing event

Photometry

Discovery (first detection):
Discovery date: 2017-12-02 19:33:36
Flux: 18.45 ABMag
Filter: G-Gaia
Instrument: Gaia-photometric
Telescope: Gaia Spacecraft

Last non-detection:
Last non-detection date: 2017-11-04 01:50:52
Limiting flux: 21.5 ABMag
Filter: G-Gaia
Instrument: Gaia-photometric
Telescope: Gaia Spacecraft


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