Discovery certificate for object 2018hsl
TNS Astronomical Transient Report No. 23888 [ 2018TNSTR1671....1D ]

Date Received (UTC): 2018-11-02 14:21:37
Sender: Gaia (Gaia_Bot1)
Reporting Group: GaiaAlerts     Discovery Data Source: 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 2018hsl
Discoverer internal name: Gaia18dgc
Coordinates (J2000): RA = 11:28:25.650 (172.106875) DEC = -62:43:04.01 (-62.717781)
Discovery date: 2018-10-31 20:12:28.000 (JD=2458423.3419907)


Remarks: red Gaia source in the Galactic plane fades by 0.6 mag

Photometry

Discovery (first detection):
Discovery date: 2018-10-31 20:12:28.000
Flux: 19.86 ABMag
Filter: G-Gaia
Instrument: Gaia-photometric
Telescope: Gaia Spacecraft

Last non-detection:
Last non-detection date: 2018-08-31 09:37:26
Limiting flux: 21.5 ABMag
Filter: G-Gaia
Instrument: Gaia-photometric
Telescope: Gaia Spacecraft


Details of the new object can be viewed here: https://www.wis-tns.org/object/2018hsl