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From: jay@npois.UUCP (Anton Winteroak)
Newsgroups: net.astro
Subject: petty complaint about the Stonehenge article
Message-ID: <8@npois.UUCP>
Date: Mon, 10-Feb-86 10:15:40 EST
Article-I.D.: npois.8
Posted: Mon Feb 10 10:15:40 1986
Date-Received: Wed, 12-Feb-86 06:06:30 EST
Organization: ATTIS, Neptune, NJ
Lines: 14


	The actual time for the precession of the Moon's orbit around
the Earth is 18 years, 6 days, and about 8 hours. Many books about
old astronomy confuse this with a cycle of 18 years, seven (lunar)
months, in which the lunar and solar calender get synchronized.

	Some accounts of Stonehenge indicate that it was built with
the 54 year 19 day eclipse cycle in mind. (This is 3 times the 18
year 6 and 1/3 day cycle).

	Otherwise, nice article. With great difficulty, it could be transported
east or west, but any North or South movement would require an Engineering
Change Order.