IlluminatedOrbiter Planetarium Model

 Not eligible for additional discount

Portable Interactive Planetarium

The Orbiter planetarium model is a scientific interactive model representing the relationship between the earth, sun and moon. It is available as lighted astronomy model (corded or battery operated), or unlighted model. This gear-driven planetarium is suggested for use as a beginning model. 

A few of the many concepts that can be effectively demonstrated with this portable desktop planetarium model are:

• How many days does it takes the earth to revolve around the sun?
• The reason for the occurrence of night and day. 
• How the earth's revolution around the sun and the tilt of its axis causes seasons.
• The variation in the length of daylight.   
• The movement of the Earth around the sun from west to east.
• Why only one side of the moon is seen from the Earth.
• How eclipses of the sun and moon occur.
• Cause of the phases of the moon.

Arm length:  15" Sun diameter:  6" Earth diameter:  4" Moon diameter:  1" Scale:  1 inch = 2000 miles 6 feet electrical cord

These are but a few of the many basic phenomena which can be explained and demonstrated with either of these elementary planetarium models. Recommended for children and adults interested in learning more about the universe. An instruction book is included.