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Elementary Classmate Planetarium
SCI_ED

Orrery planetarium demonstrates individual concepts, one at a time

Manufacturer:  Science First 6533030

Catalog No. S45168


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Includes: Instruction book, Elementary Planetariums

Description

Description

  • Earth and moon manually move independantly from one another
  • Ladder chain and gear drive keeps Earth's axis pointed at a 23.5° angle, toward the North Star
  • Overall height: 12 in.
  • Arm length: 17 in.
  • Sun: 5.75 in.
  • Earth: 4 in.

Unlit model demonstrates:

  • Occurrence of night and day
  • Variation in the length of daylight
  • Movement of the Earth around the sun from west to east
  • Why only one side of the moon is seen from the Earth
  • Eclipses of the sun and moon occur
  • Phases of the moon

Specifications

Specifications

Demonstrate movement between sun, earth and moon
30.48 cm
Orrery Planetarium
Instruction book, elementary planetariums
12 in.
Each
SDS
Documents

Documents

Product Certifications
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Promotions

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