C/2015 F4 (Jacques)

DEPARTED

Type: Periodic Perihelion date: 10 August 2015 Perihelion distance (q): 1.6 Aphelion distance (Q) : 231 Period (years): 1,255 Eccentricity (e): 0.99 Inclination (i): 48.7 JPL orbit diagram COBS lightcurve Cristovao Jacques discovered a 16th magnitude comet on images taken with the SONEAR Observatory 0.28m astrograph on 27 March 2015. Observations (VEMag = visual equivalent magnitude) Date 10x10 mag Error VEmag Coma ' 22-Jul-15 12.93 0.03 10.9 0.8 27-Jul-15 13.25 0.02 10.4 0.8 14-Aug-15 13.55 0.01 10.8 0.5 21-Aug-15 13.80 0.01 11.3 0.6 03-Sep-15 14.12 0.02 11.3 0.8 12-Sep-15 14.51 0.01 12.0 0.7 19-Sep-15 14.68 0.02 12.1 0.5 26-Sep-15 14.95 0.01 12.4 0.4 08-Oct-15 15.28 0.01 12.8 0.5 20-Oct-15 15.49 0.01 13.0 0.5 08-Nov-15 16.05 0.01 13.9 0.5 13-Dec-15 16.83 0.05 14.8 0.3