C/2019 D1 (Flewelling)

DEPARTED

Type: Periodic Perihelion date: 11 May 2019 Perihelion distance (q): 1.6 Aphelion distance (Q) : 274 Period (years): 1,617 Eccentricity (e): 0.99 Inclination (i): 34.1 JPL orbit diagram COBS lightcurve Heather Flewelling discovered a 17th magnitude comet in images taken with the ATLAS (Asteroid Terrestrial-impact Last Alert System) 0.5m Schmidt at Mauna Loa on 26 February 2019. It had been posted on the PCCP as A10ceJ9. Observations (VEMag = visual equivalent magnitude) Date 10x10 mag Error VEmag Coma ' 08-May-19 15.98 0.02 14.3 0.5 15-Jun-19 16.60 0.05 13.6 0.4 02-Jul-19 16.69 0.02 14.5 0.6 09-Aug-19 17.83 0.14 16.6 0.4 26-Aug-19 18.14 0.03 16.6 0.3 02-Sep-19 18.61 0.04 18.2 0.3 24-Sep-19 18.79 0.02 17.1 0.3 30-Sep-19 18.78 0.06 17.7 0.3 21-Oct-19 19.24 0.14 17.5 0.3 22-Nov-19 20.11 0.17 19.9 0.2