Discovery certificate for object 2021clw
TNS Astronomical Transient Report No. 99005 [ 2021TNSTR.409....1V ]

Date Received (UTC): 2021-02-10 15:34:37
Sender: Patrick Vallely
Reporting Group: ASAS-SN     Discovery Data Source: ASAS-SN

P. Vallely, for the ASAS-SN team report/s the discovery of a new astronomical transient.

IAU Designation: SN 2021clw
Discoverer internal name: ASASSN-21bg
Coordinates (J2000): RA = 05:51:19.939 (87.83308) DEC = -50:34:57.14 (-50.58254)
Discovery date: 2021-02-10 03:50:24.000 (JD=2459255.66)

Potential host galaxy: NGC 2115
Host redshift: 0.023389

Remarks: Observed in multiple epochs; on the rise.

Photometry

Discovery (first detection):
Discovery date: 2021-02-10 03:50:24.000
Flux: 17.1 ABMag
Filter: g-Sloan
Instrument: Payne-Gaposchkin
Telescope: ASASSN-Payne-Gaposchkin

Last non-detection:
Last non-detection date: 2021-02-06 02:24:00
Limiting flux: 18.5 ABMag
Filter: g-Sloan
Instrument: Cassius
Telescope: ASASSN-Cassius


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