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Comparison Chart
Comparison: Naiad vs. Neptune

This chart shows the differences between Naiad 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
Voyager 2
Urbain Le Verrier, John Couch Adams, Johann Galle
Date of Discovery
1989
23 September 1846
Average Orbit Distance
48,227 km
4,498,396,441 km
Perihelion/Perigee (closest)
48,213 km
4,459,753,056 km
Aphelion/Apogee (farthest)
48,241 km
4,537,039,826 km
Equatorial Radius
33.0 km
24,622 km
Equatorial Circumference
207.3 km
154,704.6 km
Volume
150,533 km3
62,525,703,987,421 km3
Mass
194,826,896,302,635,000 kg
102,410,000,000,000,000,000,000,000 kg
Density
1.3 g/cm3
1.638 g/cm3
Surface Area
13,684.78 km2
7,618,272,763 km2
Equatorial Surface Gravity
0.012 m/s2
11.15 m/s2
Escape Velocity
101 km/h
84,816 km/h
Orbit Period (Length of Year)
0.000804928 sidereal years
164.79132 sidereal years
Mean Orbit Velocity
42,944.9 km/h
19,566 km/h
Orbit Eccentricity
0.0003
0.00859048
Orbit Inclination to Ecliptic
4.691 degrees
1.77 degrees
Orbit Circumference
303,019.17 km
28,263,736,967 km

 

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Last Updated: 28 Apr 2014