Its rotational period is 6.39 days and its orbital period is 248.5 years.  
It has a radius of 715 miles and a mean density of 2.0 grams per cubic centimeter.  Its eccentricity of orbit is 0.248 and it has a mean distance of 39.5 Astronomical Units from the sun.  Its rotational period is 6.39 days and its orbital period is 248.5 years.  FTP, name this planet, discovered in 1930 by Clyde Tombaugh.
It has a radius of 715 miles and a mean density of 2.0 grams per cubic centimeter.  
Pluto