C/2011 O1 (LINEAR)

DEPARTED

Type: Periodic Perihelion date: 18 August 2012 Perihelion distance (q): 3.9 Aphelion distance (Q) : 2,416 Period (years): 42,085 Eccentricity (e): 1.00 Inclination (i): 76.5 JPL orbit diagram COBS lightcurve LINEAR discovered an 18th magnitude object on 31 July 2011, which was seen to show a coma by astrometrists. Observations (VEMag = visual equivalent magnitude) Date 10x10 mag Error VEmag Coma ' 04-Feb-13 16.99 0.04 15.8 0.3 21-Sep-13 18.01 0.07 17.6 0.2 08-Oct-13 18.11 0.08 17.4 0.4 12-Nov-13 18.42 0.08 17.1 0.2 14-Dec-13 18.12 0.08 17.1 0.2 03-Jan-14 17.98 0.06 16.8 0.3 13-Jan-14 18.80 0.20 18.4 0.2 24-Jan-14 18.59 0.19 17.7 0.3 06-Feb-14 18.33 0.06 16.8 0.3 17-Feb-14 18.50 0.16 18.3 0.2 28-Feb-14 18.74 0.14 17.8 0.2