Epimetheus (muin)

Frae Wikipedia, the free beuk o knawledge
Jump to navigation Jump to search
Epimetheus
PIA09813 Epimetheus S. polar region.jpg
As eemaged bi Cassini on 3 December 2007
Discovery
Discovered biRichard Walker
Discovery date18 December 1966
Designations
AdjectivesEpimethean
Orbital chairactereestics[1]
Epoch 31 December 2003 (JD 2453005.5)
151410±10 km
Eccentricity0.0098
0.694333517 d
Inclination0.351°±0.004° tae Saturn's equator
Satellite oSaturn
Pheesical chairacteristics
Dimensions129.8 × 114 × 106.2 km [2]
Mean radius
58.1±1.8 km[2]
Vollum≈ 780000 km3
Mass(5.266±0.006)×1017 kg[2]
Mean density
0.640±0.062 g/cm³[2]
0.0064–0.011 m/s²[2]
≈ 0.035 km/s
synchronous
zero
Albedo0.73±0.03 (geometric) [3]
Temperatur≈ 78 K

Epimetheus is an inner satellite o Saturn.

References[eedit | eedit soorce]

Soorces
  • Spitale, J. N.; Jacobson, R. A.; Porco, C. C.; Owen, W. M., Jr. (2006). "The orbits of Saturn's small satellites derived from combined historic and Cassini imaging observations" (PDF). The Astronomical Journal. 132 (2): 692–710. Bibcode:2006AJ....132..692S. doi:10.1086/505206.
  • Thomas, P. C. (July 2010). "Sizes, shapes, and derived properties of the saturnian satellites after the Cassini nominal mission" (PDF). Icarus. 208 (1): 395–401. Bibcode:2010Icar..208..395T. doi:10.1016/j.icarus.2010.01.025.
  • Verbiscer, A.; French, R.; Showalter, M.; Helfenstein, P. (9 February 2007). "Enceladus: Cosmic Graffiti Artist Caught in the Act". Science. 315 (5813): 815. Bibcode:2007Sci...315..815V. doi:10.1126/science.1134681. PMID 17289992. Retrieved 20 December 2011. (supporting online material, table S1)