Planet Pluto

Yes...Planet Pluto...This website will always consider Pluto to be our friendly planet neighbor!!!
Planet Pluto
Discovered by Clyde W. Tombaugh
Date of discovery February 18, 1930
Mass (kg) 1.27e+22
Mass (Earth = 1) 2.125e-03
Equatorial radius (km) 1,137
Equatorial radius (Earth = 1) 0.1783
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, Nitrogen 0.3


Planet Pluto
Planet Pluto