to wait a while to celebrate the first complete orbit of Pluto since its discovery.
Astronomers will have
Feb. 18, 1930, using the Lowell Observatory in Flagstaff, Arizona. American astronomer Clyde Tombaugh found a moving object clearly beyond the orbit of Neptune.
Pluto was discovered on
solar system tend to orbit near the ecliptic, which is the plane of the solar system. Pluto, however, is quite inclined compared with Earth and many others at 17 degrees.
The larger worlds of our
at 44 degrees, noted the Lowell Observatory's Will Grundy, co-investigator on NASA's New Horizons(opens in new tab) mission
The world Eris exceeds that
Alan Stern, of the Southwest Research Institute, noted there are four things to consider about Pluto's orbit.
New Horizons principal investigator
"Pluto and Charon are really a double planet," and that should be considered when mapping the orbit of the system.