C/2021 A2 (NEOWISE)
DEPARTED
Type: Periodic
Perihelion date: 22 January 2021
Perihelion distance (q): 1.4
Aphelion distance (Q) : 513
Period (years): 4,126
Eccentricity (e): 0.99
Inclination (i): 107.0
JPL orbit diagram
COBS lightcurve
An approximately 15th magnitude comet was discovered from the NEOWISE satellite
on 3 January 2021. It was posted on the PCCP as N00ht7m. Ground-based
observers confirmed the cometary nature, with Michael Mattiazzo reporting it as
bright as 12th magnitude in his 0.2 m reflector.
Observations (VEMag = visual equivalent magnitude)
Date
10x10 mag
Error
VEmag
Coma '
01-Mar-21
15.82
0.10
14.1
0.8
06-Apr-21
16.9
0.4