Discovery certificate for object 2020em
TNS Astronomical Transient Report No. 57677 [ 2020TNSTR..41....1F ]

Date Received (UTC): 2020-01-04 15:40:45
Sender: ZTF (ALeRCE)
Reporting Group: ALeRCE     Discovery Data Source: ZTF

F. Forster, F.E. Bauer, G. Pignata, J. Arredondo, G. Cabrera-Vives, R. Carrasco-Davis, P.A. Estevez, P. Huijse, E. Reyes, I. Reyes, P. Sanchez-Saez, C. Valenzuela, E. Castillo, D. Ruz-Mieres, D. Rodriguez-Mancini, F.E. Bauer, M. Catelan, S. Eyheramendy, M.J. Graham on behalf of the ALeRCE broker report/s the discovery of a new astronomical transient.

IAU Designation: SN 2020em
Discoverer internal name: ZTF20aadccel
Coordinates (J2000): RA = 15:39:55.601 (234.9816716) DEC = +21:38:34.69 (21.64297015)
Discovery date: 2020-01-04 12:37:06.000 (JD=2458853.0257639)

Potential host galaxy: WISEA J153955.65+213835.9
Host redshift: 0.03812

Remarks: SN candidate classified by ALeRCE using the public ZTF stream. Discovery image and light curve in


Discovery (first detection):
Discovery date: 2020-01-04 12:37:06.000
Flux: 18.2908 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

Last non-detection:
Archival info: Other
Remarks: ZTF non-detection limits not available

Details of the new object can be viewed here: