Comets - C/2010 U3 (Boattini) - CK10U030
Type Periodic Perihelion Date 26 February 2019 Perihelion Distance (q) 8.4 Aphelion Distance (Q) 21,647 Period (Years)   1,126,663 Eccentricity (e)   1.00 Inclination (i)   55.5 Click for NASA orbit diagram
Hills Observatory: 1 January 2013 to 15 December 2018
COMETS COMETS
DEEP SKY DEEP SKY
Andrea Boattini discovered a 19th magnitude comet with the Mt. Lemmon 1.5-m reflector on 2010 October 31. It was confirmed following posting on the NEOCP. The comet is at perihelion in 2019 at 8.5 AU. At discovery the comet stood in the record solar distance of 18.5 AU. The orbit is still uncertain, and one possibility is that it is a Centaur or SDO on a periodic orbit. In this case, like Chiron, its light curve might be rather erratic. Date 10x10 mag Error Kphot mag 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 n/a n/a 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