Discovery certificate for object 2021hku
TNS Astronomical Transient Report No. 104512 [ 2021TNSTR.968....1S ]

Date Received (UTC): 2021-03-31 13:44:27
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: SN 2021hku
Discoverer internal name: ASASSN-21en
Coordinates (J2000): RA = 20:32:01.913 (308.00797) DEC = -53:44:58.27 (-53.74952)
Discovery date: 2021-03-31 08:23:59.000 (JD=2459304.8499884)

Potential host galaxy: ESO 186-IG 059
Host redshift: 0.010908

Remarks: Present in several epochs, on the rise

Photometry

Discovery (first detection):
Discovery date: 2021-03-31 08:23:59.000
Flux: 16.7 ABMag
Filter: g-Sloan
Instrument: Cassius
Telescope: ASASSN-Cassius

Last non-detection:
Last non-detection date: 2021-03-27 08:52:48
Limiting flux: 17.6 ABMag
Filter: g-Sloan
Instrument: Cassius
Telescope: ASASSN-Cassius


Details of the new object can be viewed here: https://www.wis-tns.org/object/2021hku