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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.

 

Sinister Aspect

Sinister means "on the left-hand side." A sinister aspect is one in which the faster planet is waning, or decreasing in light with respect to the slower one. The faster (applying) planet is casting its rays to the left (sinister) to form the aspect because the more ponderous planet lies on the left side of the applying planet as viewed from the Earth.

Lilly says "Dexter Aspects are contrary to the succession of Signs, Sinister in order as they follow one another." With sinister aspects, the rays of the faster planet flow counterclockwise around the wheel to reach the slower planet.

If planets are direct in motion, a sinister aspect forms as a result of decreasing angular distance between them so that the planets are moving toward an eventual conjunction. For example, the Moon in Aries would cast a sinister square to Jupiter in Cancer. See Dexter. (Dorothy Kovach adds that a sinister aspect takes place when a faster moving planet aspects a slower moving planet in the natural order of the zodiac.)

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