C/2020 T2 (Palomar)

DEPARTED

Type: Periodic Perihelion date: 11 July 2021 Perihelion distance (q): 2.0 Aphelion distance (Q) : 634 Period (years): 5,676 Eccentricity (e): 0.99 Inclination (i): 27.9 JPL orbit diagram COBS lightcurve Dmitry A. Duev found a comet of 19th magnitude in images taken with the Zwicky Transient Facility camera on the 1.2m Oschin Schmidt on 7 October 2020. It was posted on the PCCP as ZTFDD01. Pre-discovery images back to December 2019 were found. It was subsequently independently discovered by the Catalina Sky Survey on 22 October and posted on the PCCP as C1G21V1. Observations (VEMag = visual equivalent magnitude) Date 10x10 mag Error VEmag Coma ' 27-Oct-20 17.8 0.4 18-Nov-20 17.8 0.4 14-Dec-20 17.66 0.10 16.9 0.4 21-Dec-20 17.63 0.11 17.3 0.4 10-Jan-21 16.77 0.01 15.2 0.6 13-Jan-21 16.63 0.03 15.0 0.6 23-Jan-21 16.43 0.03 15.4 0.6 07-Feb-21 15.99 0.05 15.8 0.4 14-Feb-21 15.77 0.01 12.9 2.3 22-Feb-21 14.0 0.9 22-Feb-21 15.56 0.03 16.9 0.4 10-Mar-21 11.0 3.0 19-Mar-21 11.5 4.0 03-Apr-21 11.0 4.0 10-Apr-21 11.0 4.5 05-May-21 13.79 0.02 9.9 7.5 14-Jun-21 13.97 0.02 12.3 1.3 01-Jul-21 11.9 1.5