Methone (moon)

Methone
Cassini image of Methone's leading side taken on 20 May 2012. Its unusually smooth surface is likely from the accumulation of dust
Discovery
Discovered byCassini Imaging Team[1]
Discovery dateJune 1, 2004
Designations
Designation
Saturn XXXII
Pronunciation/mɛˈθn/[2]
Named after
Μεθώνη Methōnē
AdjectivesMethonean /mɛθəˈnən/[3]
Orbital characteristics[4]
Epoch June 20, 2004 (JD 2453177.5)
194700 km[5]
Eccentricity0.002[5]
1.009549 d[5]
Inclination0.007°±0.003° (to Saturn's equator)
Satellite ofSaturn
GroupAlkyonides
Physical characteristics
Dimensions3.88 × 2.58 × 2.42 km
0.04 × 0.08 × 0.04 km)[6]: 2 
2.90±0.06 km[6]: 2 
Volume12.8 km3[a]
Mass(3.92±1.00)×1012 kg[6]: 3 
Mean density
0.307±0.030 g/cm3[6]: 3 
0.008–0.013 mm/s2[6]: 3 
0.0005 km/s at longest axis
to 0.0007 km/s at poles
synchronous
zero

Methone /mɛˈθn/ is a small, egg-shaped natural satellite of Saturn that orbits out past Saturn's ring system, between the orbits of Mimas and Enceladus. It was discovered in 2004, though it wasn't until 2012 that it was imaged in detail by the Cassini spacecraft.

  1. ^ Cassini Imaging Team.
  2. ^ Noah Webster (1884) A Practical Dictionary of the English Language
  3. ^ "JPL (ca. 2008) Cassini Equinox Mission: Methone". Archived from the original on 2016-04-12. Retrieved 2020-03-05.
  4. ^ Spitale Jacobson et al. 2006.
  5. ^ a b c Cite error: The named reference jpl-satelem was invoked but never defined (see the help page).
  6. ^ a b c d e f Thomas & Helfenstein 2020.


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