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Comparison Chart
Comparison: Pluto vs. Earth

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

Discovered By
Clyde Tombaugh
Known by the Ancients
Date of Discovery
18 Feb 1930
Average Orbit Distance
5,906,440,628 km
149,598,262 km
Perihelion (closest)
4,436,756,954 km
147,098,291 km
Aphelion (farthest)
7,376,124,302 km
152,098,233 km
Equatorial Radius
1,151 km
6,371.00 km
Equatorial Circumference
7,231.9 km
40,030.2 km
6,387,259,783 km3
1,083,206,916,846 km3
13,032,000,000,000,000,000,000 kg
5,972,190,000,000,000,000,000,000 kg
2.050 g/cm3
5.513 g/cm3
Surface Area
16,647,940 km2
510,064,472 km2
Equatorial Surface Gravity
0.66 m/s2
9.80665 m/s2
Escape Velocity
4,428 km/h
40,284 km/h
Rotation Period (Length of Day)
-6.387 sidereal days (retrograde)
0.99726968 sidereal days
Orbit Period (Length of Year)
247.92065 sidereal years
1.0000174 sidereal years
Mean Orbit Velocity
16,809 km/h
107,218 km/h
Orbit Eccentricity
Orbit Inclination to Ecliptic
17.14 degrees
0.00005 degrees
Equatorial Inclination to Orbit
122.5 degrees (retrograde rotation)
23.4393 degrees
Orbit Circumference
36,529,978,039 km
939,887,974 km
Minimum/Maximum Surface Temperature
-233/-223 °C
-88/58 (min/max) °C


New planets/moons to compare:

System of measurement:

Compare All Eight Planets

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Advisory: Dr. James Green, Director of Planetary Science
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Last Updated: 17 Jul 2015