General Information

1. Introduction

2. Statistic

[Next Page] [Back to Main Page]


The size of Pluto

Another compare

Back to Top


Pluto Statistics
 Discovered by Clyde W. Tombaugh 
 Date of discovery February 18, 1930 
 Mass (kg) 1.29e+22 
 Mass (Earth = 1) 2.1586e-03 
 Equatorial radius (km) 1,160 
 Equatorial radius (Earth = 1) 1.8188e-01 
 Mean density (gm/cm^3) 2.05 
 Mean distance from the Sun (km) 5,913,520,000 
 Mean distance from the Sun (Earth = 1)) 39.5294 
 Rotational period (days) -6.3872 
 Orbital period (years) 248.54 
 Mean orbital velocity (km/sec) 4.74 
 Orbital eccentricity 0.2482 
 Tilt of axis (degrees) 122.52 
 Orbital inclination (degrees) 17.148 
 Equatorial surface gravity (m/sec^2) 0.4 
 Equatorial escape velocity (km/sec) 1.22 
 Visual geometric albedo 0.3 
 Magnitude (Vo) 15.12 
 Atmospheric composition
Methane
<FONT COLOR="#00FDocument last modified on Sun Jun 01 22:54:43 1997 by <a href='mailto:[email protected]'>Huan-Jim Ngo