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Solar System Exploration
Isonoe: Facts & Figures
   Back to Jupiter   Overview   Facts & Figures 
Discovered By
Scott S. Sheppard, David C. Jewitt, Yanga R. Fernandez, and Eugene Magnier
Date of Discovery
23 November 2000
Orbit Size Around Jupiter (semi-major axis)
Metric: 23,231,000 km
English: 14,435,074 miles
Periapsis (closest)
Metric: 17,504,559 km
Apoapsis (farthest)
Metric: 28,957,442 km
Sidereal Orbit Period (Length of Year)
1.988309377 Earth years
726.23 Earth days
By Comparison: Retrograde orbit
Orbit Circumference
Metric: 143,721,469.29 km
Average Orbit Velocity
Metric: 8,245.9 km/h
Orbit Eccentricity
Orbit Inclination
By Comparison: Retrograde orbit
Mean Radius
Metric: 1.9 (assuming an albedo of 0.04) km
English: 1.2 miles
Equatorial Circumference
Metric: 11.9 km
Metric: 29 km3
Metric: 74,933,421,654,860 kg
Scientific Notation: 7.4933 x 1013 kg
Metric: 2.6 g/cm3
Surface Area
Metric: 45.36 km2
Surface Gravity
Metric: 0.001 m/s2
Escape Velocity
Metric: 8 km/h

Additional Information:

-USGS Astrogeology: Gazetteer of Planetary Nomenclature:

-JPL Solar System Dynamics:

-Solar System Moons: Discovery and Mythology by Jürgen 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

-Encyclopædia Britannica Online. 2010:
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Last Updated: 8 Mar 2011