C/2014 E2 (Jacques)

DEPARTED

Type: Periodic Perihelion date: 2 July 2014 Perihelion distance (q): 0.7 Aphelion distance (Q) : 1,377 Period (years): 18,081 Eccentricity (e): 1.00 Inclination (i): 156.4 JPL orbit diagram COBS lightcurve Cristovao Jacques discovered a 15th magnitude comet on 13 March 2014 using the 0.45m telescope at the Southern Observatory for Near Earth Research at Oliveira, Brazil. Some observations suggested that it was already 11th magnitude just after discovery, and it continued to brighten fairly quickly. It was brightest at around 6th magnitude in July and then faded slowly until September, before fading quite rapidly. Observations (VEMag = visual equivalent magnitude) Date 10x10 mag Error VEmag Coma ' 13-Mar-14 13.73 0.03 11.9 1.1 14-Mar-14 13.68 0.03 11.9 0.9 20-Mar-14 13.40 0.03 11.5 1.1 29-Mar-14 13.21 0.02 10.8 1.6 05-Apr-14 13.12 0.02 10.5 2.1 14-Apr-14 12.99 0.03 9.7 1.4 21-Apr-14 12.97 0.01 9.9 1.7 29-Apr-14 12.79 0.02 9.6 1.5 12-Sep-14 12.54 0.01 9.3 2.6 14-Sep-14 12.67 0.02 9.3 1.1 21-Sep-14 13.56 0.02 10.3 2.0 07-Oct-14 14.24 0.03 10.4 0.8 10-Oct-14 14.35 0.04 11.0 0.6 16-Oct-14 14.52 0.04 12.0 0.9 19-Oct-14 14.92 0.02 12.3 0.3 02-Nov-14 15.43 0.03 12.1 0.3 12-Mar-15 18.00 0.12 17.5 0.2