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Solar System Exploration
Lysithea: Facts & Figures
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Discovered By
Seth Barnes Nicholson
Date of Discovery
6 July 1938
Orbit Size Around Jupiter (semi-major axis)
Metric: 11,717,000 km
English: 7,280,606 miles
Scientific Notation: 1.1717x107 km (7.832x10-2 A.U.)
By Comparison: 0.07832
Periapsis (closest)
Metric: 10,400,009 km
Apoapsis (farthest)
Metric: 13,033,991 km
Sidereal Orbit Period (Length of Year)
0.709650924 Earth years
259.2 Earth days
Orbit Circumference
Metric: 73,387,003.90 km
Average Orbit Velocity
Metric: 11,797.0 km/h
Orbit Eccentricity
Orbit Inclination
Mean Radius
Metric: 18.0 (assuming an albedo of 0.04) km
English: 11 miles
Equatorial Circumference
Metric: 113.1 km
Metric: 24,429 km3
Metric: 62,944,074,190,082,100 kg
Scientific Notation: 6.2944x1016 kg
Metric: 2.6 g/cm3
Surface Area
Metric: 4,071.50 km2
Surface Gravity
Metric: 0.013 m/s2
Escape Velocity
Metric: 78 km/h
English: 48 mph
Scientific Notation: 22 m/s

Additional Information:

-USGS Astrogeology: Gazetteer of Planetary Nomenclature:

-JPL Solar System Dynamics:

-Solar System Moons: Discovery and Mythology by J├╝rgen Blunck; Springer-Verlag Berlin Heidelberg 2010

-Encyclopedia of the Solar System, second edition; edited by Lucy-Ann McFadden, Paul R. Weissman, and Torrence V. Johnson; Academic Press 2007

-Ellis Miner
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Last Updated: 25 Apr 2012