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May 11, 2024, 9:49 pm UTC    
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sandy
July 26, 2001 11:45AM
<HTML>Yes Anthony the obliquity is the cause of precession. But the degree of obliquity determins the length of the precessional period, the greater the obliquity, the longer the precessional period. A reduced obliquity would result in a shorter precessional period. If you have a changing obliquity(which we have) then there are also minute changes in the length of precession. The precessional period is changing to coincide with the rate of change of the obliquity.

We can only speculate as to what the actual obliquity was 10,500 bce, it was certainly greater than 24.14°. Therefor the precessional period was longer than 25,785.912 years. So it is not possible to accurately allign any monument with any set of stars using todays obliquity or precessional period, because we don't know what the factor of drift is during the last 10,500 or so years.</HTML>
Reply Quote
Subject Author Posted

Unfortunately

sandy July 25, 2001 08:28AM

Re: Unfortunately

John Wall July 25, 2001 08:31AM

Re: Unfortunately

sandy July 25, 2001 08:37AM

Re: Unfortunately

John Wall July 25, 2001 08:39AM

Re: Unfortunately

Anthony July 25, 2001 09:07AM

Re: Unfortunately

John Wall July 25, 2001 09:09AM

Re: Unfortunately

sandy July 25, 2001 09:51AM

Re: Unfortunately

John Wall July 25, 2001 10:23AM

Re: Unfortunately

Mikey Brass July 25, 2001 12:10PM

Re: Unfortunately

John Wall July 25, 2001 04:43PM

Re: Unfortunately

Mikey Brass July 25, 2001 04:58PM

Re: Unfortunately

John Wall July 25, 2001 05:08PM

Re: Unfortunately

javier July 25, 2001 05:53PM

Re: Unfortunately

John Wall July 25, 2001 06:21PM

Sandy...

Anthony July 25, 2001 05:02PM

Re: Sandy...

sandy July 26, 2001 11:45AM



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