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Comparison Chart
Comparison: Neso vs. Neptune

This chart shows the differences between Neso and Neptune. To change the planets/moons being compared, change one or more of the form fields at the bottom and click Refresh.

Discovered By
Matthew J. Holman, John J. Kavelaars, Tommy Grav, Wesley C. Fraser, and Dan Milisavljevic
Urbain Le Verrier, John Couch Adams, Johann Galle
Date of Discovery
23 September 1846
Average Orbit Distance
49,285,000 km
4,498,396,441 km
Perihelion/Perigee (closest)
21,123,551 km
4,459,753,056 km
Aphelion/Apogee (farthest)
77,446,449 km
4,537,039,826 km
Equatorial Radius
30.0 (assuming an albedo of 0.04) km
24,622 km
Equatorial Circumference
188.5 km
154,704.6 km
113,097 km3
62,525,703,987,421 km3
164,853,527,640,691,000 kg
102,410,000,000,000,000,000,000,000 kg
1.5 g/cm3
1.638 g/cm3
Surface Area
11,309.73 km2
7,618,272,763 km2
Equatorial Surface Gravity
0.012 m/s2
11.15 m/s2
Escape Velocity
97 km/h
84,816 km/h
Orbit Period (Length of Year)
26.6686653 sidereal years
164.79132 sidereal years
Mean Orbit Velocity
1,208.8 km/h
19,566 km/h
Orbit Eccentricity
Orbit Inclination to Ecliptic
1.77 degrees
Orbit Circumference
282,584,902.19 km
28,263,736,967 km


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System of measurement:

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Last Updated: 28 Apr 2014