Related Items   from Encarta  
Ecliptic
celestial mechanics
Celestial Sphere
constellations
coordinate system
creation of seasons
diagrams and illustrations
hours of daylight by latitude
in astrology
Orbit
research and study
solstice
table of astronomical constants
zodiac belt
Orbit (astronomy and physics)
Orbit (astronomy and physics), path or trajectory of a body through space. A force of attraction or repulsion from a second body usually causes the...
 View article
© 2008 Microsoft