Comets - 164P/Christensen - 0164P
Type Periodic Perihelion Date 31 May 2018 Perihelion Distance (q) 1.7 Aphelion Distance (Q) 5.6 Period (Years)   7.0 Eccentricity (e)   0.54 Inclination (i)   16.3 Click for NASA orbit diagram
Hills Observatory: 1 January 2013 to 16 November 2018
COMETS COMETS
DEEP SKY DEEP SKY
The comet was discovered by Eric Christensen on 21 December 2004 during the course of the Catalina Sky Survey Prediscovery images from LINEAR allowed the computation of a preliminary orbit, and further images from the 1997 return, taken in 1998 by NEAT and LONEOS allowed the comet to be numbered. Date 10x10 mag Error Kphot mag Coma ' 13-Oct-18   18.13   0.13   17.7   0.2 20-Oct-18   18.00   0.07   17.0   0.4 10-Nov-18   17.90   0.05 17.5 0.3