Planets from Stars
Name: Rai K.
How were the ancient Greeks able to distinguish the
planets from the stars?
The planets move across the sky at different rates. The word planet means
---Nathan A. Unterman
The moon and planets move against the background of stars. The stars move and
return to their ariginal positions in about a year. The planets are much faster.
The Greeks actually only saw the five brightest planets, which are closer to the Earth.
These planets move quickly due to their proximity to the Earth.
Click here to return to the Astronomy Archives
Update: June 2012