July 22, 2014

Churyumov-Gerasimenko Comet

Churyumov-Gerasimenko Comet (note jets presence - image source ESA)

  • Discovered in 1969
  • Orbital period 6.59 years
  • Aphelion (distance farthest to the Sun): 5.73 Astronomical Units*
  • Perihelion (distance closest to the Sun): 1.3 Astronomical Unit*
  • Mean Radius about 2000 m (if albedo 4%)
  • Rotation period about 12.3 h
  • Rotation axis direction: unknown

* 1 Astronomical Unit = 150 millions km