C/2020 U3 (Rankin)


Type: Periodic Perihelion date: 5 February 2021 Perihelion distance (q): 2.3 Aphelion distance (Q) : 127 Period (years): 520 Eccentricity (e): 0.96 Inclination (i): 30.2 JPL orbit diagram COBS lightcurve David Rankin discovered a comet of 20th magnitude in images taken with the 1.5m reflector on 22 October 2020 during the Mt Lemmon Survey. It was placed on the PCCP as C3N9802. There were pre-discovery images from PanSTARRS (July, August, September, October), Mt Lemmon (September, October) and Pleasant Groves Observatory (September). Observations (VEMag = visual equivalent magnitude) Date 10x10 mag Error VEmag Coma ' 21-Nov-20 18.1 0.4