November 19, 2020 01:40AM
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Registered: 19 years ago
Posts: 3,600
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Chris Tedder Wrote:
-------------------------------------------------------
> Hans: “What effect has the movement of the African
> tectonic plate to the NE over 4,600 years had on
> these calculations?”
>
> Interesting question, one that has been asked many
> times over the years in the context of the
> orientation of Khufu’s pyramid that is slightly
> skewed a few arc minutes to the west of north.
>
> As regards possible celestial alignments with the
> shafts, a movement east or west along the same
> latitude has no affect on stellar alignments.
> However a movement north or south will affect the
> altitude of a star at upper culmination and hence
> a date. If the pyramid has moved about 100m
> northeast since it was built it has moved about
> 71m due north which means, if the tectonic plate
> movement is taken into account, the altitude of
> Thuban differed by about 2 arc seconds c. 2588 BC.
> The affect on a date for the alignment is
> negligible.
>
> Chris
Thanks for the clarification!
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