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Calypso

Calypso

Moons - Calypso Return to Moons page Click here to return to Saturn's Moons page

Calypso [ka-LIP-so] and Telesto [tah-LESS-toh] are known as the "Tethys Trojans" because they circle Saturn in the same orbit as Tethys, about 60 degrees ahead of and behind it. While Telesto is the "leading Trojan," Calypso is the "trailing Trojan." Both of these moons were discovered in 1980 using ground-based observations.

Flyby Dates

No targeted flyby.

Closest approach: June 30, 2004 -- 52,080 kilometers (32,361 miles)

Fast Facts
  • Discovered in 1980 by Brad Smith, Harold Reitsema, Stephen Larson and John Fountain
  • Distance from Saturn: 294,660 km (183,093 miles)
  • Equatorial diameter: 30 x 16 x 16 km (19 x 10 x 10 miles)
  • Mass: 8 x 1017 kg (17.6 x 1017 lbs)
Science Goals
  • Determine general characteristics and geology of Calypso
  • Define the different physical processes that created the surface of Calypso
  • Investigate composition and distribution of surface materials on Calypso -- particularly the dark, organic-rich materials and condensed ice with a low melting point
  • Determine the bulk composition and internal structure of Calypso
  • Investigate interaction of Calypso with Saturn's magnetosphere and ring system
Saturn's Moons (sorted alphabetically)
Aegaeon
Aegir
Albiorix
Anthe
Atlas
Bebhionn
Bergelmir
Bestla
Calypso
Daphnis
Dione
Enceladus
Epimetheus
Erriapus
Farbauti
Fenrir
Fornjot
Greip
Hati
Helene
Hyperion
Hyrrokkin
Iapetus
Ijiraq
Janus
Jarnsaxa
Kari
Kiviuq
Loge
Methone
Mimas
Mundilfari
Narvi
Paaliaq
Pallene
Pan
Pandora
Phoebe
Polydeuces
Prometheus
Rhea
Siarnaq
Skadi
Skoll
Surtur
Suttung
Tarqeq
Tarvos
Telesto
Tethys
Thrym
Titan
Ymir

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