{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Discover Pluto - slowly So it was many years before the 9th...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Discover Pluto After the discovery of Neptune in 1846, mathematics suggested that there still might be a ninth planet. Scientists set out to discover it, and it was finally identified in 1930 by Clyde Tombaugh after a careful search of the sky. Because Pluto is so small, it is also very dim in the sky. At 39 Astronomical Units from the sun, and with 248 years to complete its orbit around the sun, Pluto also moves very
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: slowly. So it was many years before the 9th planet could be identified by its motion. Pluto is named after the Roman god of the underworld. It has one moon named Charon . Some scientists say that Pluto isn't a moon at all. They say it's really a satellite that escaped Neptune's gravitational pull. This is an image of Pluto with its moon Charon....
View Full Document

{[ snackBarMessage ]}