C/2010 U3 (Boattini)

DEPARTED

Type: Periodic Perihelion date: 25 February 2019 Perihelion distance (q): 8.4 Aphelion distance (Q) : 4,929 Period (years): 122,667 Eccentricity (e): 1.00 Inclination (i): 55.5 JPL orbit diagram COBS lightcurve Andrea Boattini discovered a 19th magnitude comet with the Mt. Lemmon 1.5-m reflector on 31 October 2010. It was confirmed following posting on the NEOCP. It was discovered whilst still over 18.5 AU from the Sun. Observations (VEMag = visual equivalent magnitude) Date 10x10 mag Error VEmag Coma ' 17-Aug-15 18.96 0.11 18.4 0.2 08-Sep-15 18.57 0.02 16.4 0.2 22-Sep-15 18.53 0.06 15.1 0.2 08-Oct-15 18.64 0.09 17.6 0.2 05-Nov-15 18.35 0.02 17.5 0.2 16-Nov-15 18.30 0.05 17.6 0.2 03-Dec-15 18.07 0.04 16.7 0.2 09-Dec-15 18.27 0.08 17.7 0.2 16-Dec-15 18.06 0.08 23-Feb-16 16.97 0.03 14.8 0.8 28-Sep-16 18.00 0.06 14.8 0.3 23-Nov-16 17.91 0.08 15.6 0.3 19-Dec-16 18.13 0.06 16.8 0.2 27-Dec-16 18.17 0.07 17.3 0.2 04-Jan-17 18.24 0.05 16.8 0.2 02-Mar-17 18.40 0.12 17.8 0.2 13-Jul-17 17.97 0.06 14.9 0.2 04-Aug-17 17.87 0.02 16.3 0.3 29-Aug-17 16.87 0.02 14.0 0.5 31-Oct-17 17.61 0.02 15.5 0.4 13-Nov-17 17.66 0.05 16.0 0.4 28-Nov-17 17.60 0.04 15.2 0.4 21-Dec-17 17.26 0.04 14.0 0.6 15-Jan-18 17.60 0.08 16.0 0.6 21-Jan-18 17.56 0.02 16.4 0.6 13-Feb-18 17.61 0.03 16.6 0.5 20-Feb-18 17.58 0.04 16.1 0.4 15-Mar-18 17.43 0.04 15.1 0.4 18-Apr-18 17.68 0.04 15.6 0.4 02-May-18 17.65 0.04 15.6 0.4 12-Oct-18 18.01 0.13 17.0 0.3 02-Dec-18 17.88 0.17 15.3 0.3 30-Dec-18 17.38 0.03 14.7 0.5 06-Jan-19 17.45 0.04 15.3 0.5 30-Apr-19 17.80 0.03 15.3 0.5 07-May-19 17.78 0.02 14.7 0.5 24-May-19 17.79 0.04 15.6 0.8 04-Jun-19 17.63 0.03 15.0 0.6 08-Aug-19 18.28 0.02 16.5 0.4 22-Jan-20 18.48 0.03 16.5 0.6 03-Feb-20 18.53 0.05 16.9 0.5 24-Mar-20 18.75 0.09 17.6 0.4 22-May-20 18.80 0.10 16.9 0.4 07-Feb-21 19.0 0.4 14-Feb-21 18.2 0.4 05-Mar-21 18.0 0.4 02-Apr-21 18.6 0.4 13-Apr-21 18.7 0.4 04-May-21 18.4 0.4