Pallene (moon)

Pallene
Cassini image of Pallene transiting Saturn on October 16, 2010
Discovery
Discovered byVoyager 2 (first discovery)
Cassini Imaging Team[1]
Discovery dateJune 1, 2004 (second discovery by Cassini-Huygens)
Designations
Designation
Saturn XXXIII
Pronunciation/pəˈln/[2]
Named after
Παλλήνη Pallēnē
S/1981 S 14 (first discovery)
S/2004 S 2 (second discovery)
AdjectivesPallenean /pæləˈnən/[3]
Orbital characteristics[4]
Epoch 20 June 2004 (JD 2453177.5)
212300 km[5]
Eccentricity0.004[5]
1.009549 d[5]
Inclination0.1810°±0.0014° (to Saturn's equator)
Satellite ofSaturn
GroupAlkyonides
Physical characteristics
Dimensions5.76 × 4.16 × 3.68 km
(± 0.14 × 0.14 × 0.14 km)[6]: 2 
4.46±0.14 km[6]: 2 
Volume46.5 km3[a]
Mass(1.15±0.40)×1013 kg[6]: 3 
Mean density
0.251±0.075 g/cm3[6]: 3 
0.011–0.016 mm/s2[6]: 3 
0.0007 km/s at longest axis
to 0.0009 km/s at poles
synchronous
zero

Pallene /pəˈln/ is a very small natural satellite of Saturn. It is one of three small moons known as the Alkyonides that lie between the orbits of the larger Mimas and Enceladus. It is also designated Saturn XXXIII.

  1. ^ Cassini Imaging Team.
  2. ^ Noah Webster (1884) A Practical Dictionary of the English Language
  3. ^ "JPL (ca. 2008) Cassini Equinox Mission: Pallene". 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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