Example Sentences

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Though this motion, or precession, is barely perceptible, the Martian axis leans in the opposite direction every 25,000 years, or halfway through a complete precessional cycle.

From Time Magazine Archive

We thus see that the average precessional effect of the moon simply conspires with that of the sun to produce a revolution around the pole of the ecliptic.

From The Story of the Heavens by Ball, Robert S. (Robert Stawell), Sir

It will, therefore, be obvious that there is a profound difference between the precessional effect of the sun and of the moon in their action on the earth.

From The Story of the Heavens by Ball, Robert S. (Robert Stawell), Sir

The precessional effect of the moon would accordingly tend to make the pole of the earth's axis describe a circle around that point in the heavens which is the pole of the moon's orbit.

From The Story of the Heavens by Ball, Robert S. (Robert Stawell), Sir

By precessional motion the foot of Hercules rests upon its head, and we find it depicted as of the most material color, red.

From The Woman's Bible by Stanton, Elizabeth Cady