Discovery certificate for object 2020sde
TNS Astronomical Transient Report No. 80823 [ 2020TNSTR2622....1S ]

Date Received (UTC): 2020-08-27 23:34:58
Sender: Prof. Krzysztof Stanek
Reporting Group: ASAS-SN     Discovery Data Source: ASAS-SN

K. Z. Stanek, for the ASAS-SN team report/s the discovery of a new astronomical transient.

IAU Designation: AT 2020sde
Discoverer internal name: ASASSN-20ky
Coordinates (J2000): RA = 01:05:00.504 (16.2521) DEC = -46:04:35.69 (-46.07658)
Discovery date: 2020-08-26 21:21:36.000 (JD=2459088.39)

Potential host galaxy: WISEA J010459.90-460432.8
Host redshift: 0.029887

Remarks: Present in several epochs, on the rise, in TESS Sector 29 field of view

Photometry

Discovery (first detection):
Discovery date: 2020-08-26 21:21:36.000
Flux: 16.8 ABMag
Filter: g-Sloan
Instrument: Payne-Gaposchkin
Telescope: ASASSN-Payne-Gaposchkin

Last non-detection:
Last non-detection date: 2020-08-13 23:02:24
Limiting flux: 18.5 ABMag
Filter: g-Sloan
Instrument: Payne-Gaposchkin
Telescope: ASASSN-Payne-Gaposchkin


Details of the new object can be viewed here: https://www.wis-tns.org/object/2020sde