C/2020 U4 (PANSTARRS)

DEPARTED

Type: Hyperbolic Perihelion date: 7 April 2022 Perihelion distance (q): 5.4 Aphelion distance (Q) : n/a Period (years): n/a Eccentricity (e): 1.00 Inclination (i): 167.0 JPL orbit diagram COBS lightcurve PanSTARRS 1 discovered a 20th magnitude comet in images taken with the 1.8m Ritchey-Chretien on 22 October 2020. It was posted on the PCCP as P118KQG. There were pre-discovery images from PanSTARRS 1 and 2 (November and December 2019, January, April, September and October 2020 ) and Mt Lemmon (October), some already reported as isolated positions with no sign of cometary activity. Observations (VEMag = visual equivalent magnitude) Date 10x10 mag Error VEmag Coma ' 10-Sep-21 18.1 0.4 25-Aug-22 18.7 0.4 06-Sep-22 18.7 0.4 21-Sep-22 18.5 0.4 01-Oct-22 18.9 0.4 19-Oct-22 18.4 0.4 27-Oct-22 18.5 0.4 13-Nov-22 18.5 0.4 22-Nov-22 18.9 0.4 29-Nov-22 18.7 0.4 09-Apr-23 18.2 0.4 13-Jun-23 18.4 0.4