9134 Encke

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Discovery[1] and designation
Discovered by C. J. van Houten, I. van Houten-Groeneveld
Discovery site Leiden University
Discovery date September 24, 1960
MPC designation 9134
Named after Johann Franz Encke
Alternative names 4822 P-L, 1992 AX2[1]
Orbital characteristics[1][2]
Epoch August 27, 2011 (JD 2455800.5)
Aphelion 3.0037308 AU
Perihelion 2.8076260 AU
Semi-major axis 2.9056784 AU
Eccentricity 0.0337451
Orbital period 4.95312762 yr (1809.12986 d)
Mean anomaly 139.66695°
Inclination 2.74769°
Longitude of ascending node 135.76956°
Argument of perihelion 183.64581°
Physical characteristics
Absolute magnitude (H) 14.2[1]

9134 Encke (4822 P-L) is an asteroid-belt asteroid discovered on 24 September 1960 by Cornelis Johannes van Houten and Ingrid van Houten-Groeneveld at Leiden University, on photographic plates from the Palomar Observatory.[1]

It is named for the astronomer Johann Franz Encke. It shares its name with the Comet Encke.


  1. ^ a b c d e JPL Small-Body Database Browser on 9134 Encke Retrieved 2011-09-12
  2. ^ AstDys-2 on (9134) Encke Retrieved 2011-09-12