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Dictionary of Astrological and Astronomical Terms

Compiled by Julene Packer-Louis, Evan Bortnick, and Jackie Goldstein

Copyright 2000-2020 OCA, Inc. All rights reserved. No portion of the dictionary may be reproduced in any form without written permission.


Bode's Law

The rule that describes planetary distances was first published by Johann Titus in 1766. It states that if you write down the series 0, 3, 6, 12..., add 4 to each number and then divide by 10, the numbers obtained represent the mean distances of the planets from the Sun in Astronomical Units (AU). It was popularized by Johann Elert Bode. This law showed a "missing planet" at 2.8AU from the Sun. Ceres was discovered in 1801 at 2.77AU from the Sun.

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