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The Planet Dial For Sale

Price - $24.20

Ad Number: 175875

Posted: 02 Jul 2019

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This one of a kind handcrafted dial helps to show whether a planet is observable in the night sky for the observer's location. It also shows in which star constellation the planet can be found based on the length of a shadow cast on the dial at noon.

Simple to use:

1) Position the center spike/gnomon at the center of the dial. The dial has a small neodynium magnet to hold it firmly in place in a vertical position.

2) Lay the dial on a flat horizontal surface outdoors at noon. A shadow of the center spike will appear on the face of the dial.

3) Rotate/turn the dial so that the shadow aligns with the sun or planet of interest. Notice that each planet and the sun have its own line on the dial separated 30 degrees apart.

4) Where the point of the shadow lands on the dial will indicate whether the planet is visible and in what constellation it is visible in.

The dial is approx. 7" in diameter and is heavily laminated for protection from moisture. The dial face is mounted on a 0.25" thick plywood disk for dimensional stability. A small neodynium magnet is embedded in the dial for quick attachment to a metal surface such as a refrigerator or metal desk if desired when not in use.

**Note: Please specify observing location City/Town in the U.S. when purchasing. U.S. sales only.

Clear Skies,


  • Condition new
  • Location Central Iowa

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