Comets - 257P/Catalina - 0257P
Type Periodic Perihelion Date 4 June 2013 Perihelion Distance (q) 2.1 Aphelion Distance (Q) 5.4 Period (Years)   7.3 Eccentricity (e)   0.43 Inclination (i)   20.2 Click for NASA orbit diagram
Hills Observatory: 1 January 2013 to 6 May 2018
COMETS COMETS
DEEP SKY DEEP SKY
Date 10x10 mag Error Kphot mag Coma ' 9 Aug 13 17.49 0.01 17.3 0.2 19 Aug 13 17.52 0.26 17.1 0.2 29 Aug 13 17.59 0.04 17.4 0.2 14 Oct 13 16.69 0.07 16.1 0.2 23 Oct 13 17.36 0.10 17.1 0.2 4 Nov 13 17.55 0.04 17.3 0.2 9 Dec 13 18.41 0.08 17.9 0.3 25 Dec 13 18.60 0.15 18.3 0.2 4 Jan 14 18.62 0.24 18.3 0.2
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