Comets - 257P/Catalina - 0257P
Type Periodic Perihelion Date 11 September 2020 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 21 May 2019
COMETS COMETS
DEEP SKY DEEP SKY
257P/Catalina = 2005 JY126 = 2012 F4 An 18th magnitude comet found during the Catalina Sky Survey on 7 June 2005 was linked to an asteroid detected at the Steward Observatory on 3 May, and with earlier observations by the Catalina Sky Survey on 17 April. It reached perihelion in late February 2006 at 2.13 AU and has a period of 7.3 years. The comet was recovered by G. Sostero, N. Howes, A. Tripp, E. Guido using the 2.0-m Siding Spring-Faulkes Telescope South on 21 March 2012. 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