Comets - 88P/Howell - 0088P
Type Periodic Perihelion Date 6 April 2015 Perihelion Distance (q) 1.4 Aphelion Distance (Q) 4.9 Period (Years)   5.5 Eccentricity (e)   0.56 Inclination (i)   4.4 Click for NASA orbit diagram 
Hills Observatory: 1 January 2013 to 2 December 2018
COMETS COMETS
DEEP SKY DEEP SKY
The comet was discovered on 29 August 1981. In 1975 the comet's perihelion (closest approach to the Sun) was 1.9 AU, But a close approach to Jupiter in 1978 perturbed the perihelion distance closer to the Sun. It last came to perihelion on 6 April 2015; the next occurrence will be in 2020. Around 14 September 2031 the comet will pass 0.074 AU (11,100,000 km) from Mars. Date 10x10 mag Error Kphot mag Coma ' 22-Jul-15 14.77 0.03 11.3 0.5 09-Aug-15 15.01 0.02 11.5 0.4 17-Aug-15 14.92 0.04 12.1 1.6 25-Aug-15 15.00 0.02 11.8 0.9 08-Sep-15 15.25 0.01 12.1 0.7 16-Sep-15 15.32 0.01 12.1 0.5 23-Sep-15 15.34 0.01 12.2 0.6 08-Oct-15 15.32 0.01 12.1 0.7 20-Oct-15 15.21 0.01 12.1 0.9 02-Nov-15 15.36 0.01 12.2 1.0 09-Nov-15 15.69 0.01 12.2 0.8 16-Nov-15 15.92 0.01 11.9 0.6 03-Dec-15 16.49 0.01 13.0 0.7 10-Dec-15 16.65 0.01 13.4 0.6
TRY AGAIN IN 2020