Discovery certificate for object 2019von
TNS Astronomical Transient Report No. 53422 [ 2019TNSTR2442....1W ]

Date Received (UTC): 2019-11-25 18:54:36
Sender: Prof. Krzysztof Stanek
Reporting Group: ASAS-SN     Discovery Data Source: ASAS-SN

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

IAU Designation: SN 2019von
Discoverer internal name: ASASSN-19abt
Coordinates (J2000): RA = 02:09:47.642 (32.44851) DEC = -11:37:47.86 (-11.62996)
Discovery date: 2019-11-21 06:28:48.000 (JD=2458808.77)

Potential host galaxy: WISEA J020947.59-113746.9
Host redshift: 0.039908

Remarks: Present in several epochs, possible nuclear sources, so could also be an AGN or a TDE

Photometry

Discovery (first detection):
Discovery date: 2019-11-21 06:28:48.000
Flux: 17.1 ABMag
Filter: g-Sloan
Instrument: Leavitt
Telescope: ASASSN-Leavitt

Last non-detection:
Last non-detection date: 2019-11-18 06:28:48
Limiting flux: 17.5 ABMag
Filter: g-Sloan
Instrument: Leavitt
Telescope: ASASSN-Leavitt


Details of the new object can be viewed here: https://wis-tns.weizmann.ac.il/object/2019von