Callisto - Callisto (moon) Callisto View of the heavily...

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Callisto (moon) Callisto View of the heavily cratered terrain of Callisto's anti- Jovian hemisphere obtained in 2001 by NASA's Galileo spacecraft. The large impact structure Asgard is on the limb at upper right. The prominent rayed crater below and just right of center is Bran . Discovery Discovered by Galileo Galilei Discovery date January 7, 1610 [1] Designations Alternate name(s) Jupiter IV Adjective Callistoan, Callistonian Orbital characteristics Periapsis 1 869 000 km [b] Apoapsis 1 897 000 km [a] Semi-major axis 1 882 700 km [2] Eccentricity 0.007 4 [2] Orbital period 16.689 018 4 d [2] Average orbital speed 8.204 km/s Inclination 0.192° (to local Laplace planes ) [2] Satellite of Jupiter Physical characteristics Mean radius 2410.3 ± 1.5 km (0.378 Earths) [3] Surface area 7.30 × 10 7 km 2 (0.143
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Earths) [c] Volume 5.9 × 10 10 km 3 (0.0541 Earths) [d] Mass 1.075 938 ± 0.000 137 × 10 23 kg (0.018 Earths) [3] Mean density 1.834 4 ± 0.003 4 g/cm 3 [3] Equatorial surface gravity 1.235 m/s 2 (0.126 g ) [e] Escape velocity 2.440 km/s [f] Rotation period synchronous [3] Axial tilt zero [3] Albedo 0.22 (geometric)
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This note was uploaded on 12/15/2011 for the course AST AST1002 taught by Professor Emilyhoward during the Fall '10 term at Broward College.

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Callisto - Callisto (moon) Callisto View of the heavily...

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