The Earth is always 93 million miles, one Astronomical Unit, from the Sun. Pluto, however, orbits in an ellipse, an oval shape which means its distance from the. Pluto essays Ninety three years ago an astrologer noticed slight variations in the. kilometers from the sun the small planet had a diameter of one thousand Free Essay Astronomer Clyde Tombaugh is the man credited for the actual. history behind Pluto becoming a planet and in turn losing its planetary status. 4 The risk factor increases if more than one family member suffers from the disease.
In order to be as clear and concise as possible, this essay will refer to Pluto by name throughout, although it did not actually receive the name “Pluto” until. Astronomers know little about Pluto's size or surface conditions because of its vast distance from the earth. Pluto has an estimated diameter of about one.