Manu Wrote:
-------------------------------------------------------
> Yes, that's a good point. You can bisect the
> distance if you can visualize the star that close
> to the horizon. It depends on the arcus visionis.
> If you can stay consistent even with a high arcus,
> it can be done
> If alpha-Draconis was used, two
> possibilities can be also considered....Letopolis'
> orientation was aligned and G.P. aligned to
> Letopolis or the foundation of the Great Pyramid
> was in place before the Fourth Dynasty.
>
> Thank you.

That's one way to look at it, but that perspective considers only one of many possible scenarios. Since we actually have no hard evidence of the original construction date of those pyramids along the lower Nile (as can be repeatedly inferred by various discussions in this forum that probe that specific point over the past few years), then if those lower Nile pyramids were designed and positioned according to the North Pole star, then such a correlation might have occurred at any of several periods during the Earth's precession, according to which star served as the pole star during that particular part of the precessional cycle:

2,000 AD - Polaris
1,000 BC - Kochab (Ursa Minor)
3,000 BC - Thuban (i.e., alpha-Draconis; Draco)
10,000 BC - Vega (Lyra)
14,000 BC - Deneb (Cygnus)
16,500 BC - Alderamin
19,000 BC - Cephei
20,000 BC - Errau
24,000 BC - Polaris

And of course this list makes some wild presumptions including that the Earth's precessional angle and period have not changed significantly during that time, or that those pyramids were actually constructed during the present precessional cycle vs. a previous cycle, etc.

Since modern earthquakes have been shown to cause a measureable change in the length of a solar day and also can effect the precessional period & angles, who can say for sure what other events might have caused effects that have accumulated into significant changes in precessional, or even the Earth's rotational axis angle?

And so for example, Giza currently is located at about 30N latitude; however, the Descending Passage is at 26.31 degrees. Some people have proposed that the DP originally pointed to the north pole, but the current angles of the Earth's axis would not allow that to happen unless there was a polar shift since the time those pyramids were constructed. Likewise for the angles of the "air shafts" as well as different passage angles seen in other pyramids along the Nile. Such a broader view seems to further complicate any extrapolated assumptions regarding star calculations at the time of pyramid construction. And if we take the currently measureable effects of climate change on the Earth's tilt axis, this only makes such extrapolated assumptions even less reliable.




Edited 5 time(s). Last edit at 19-Feb-17 18:03 by Origyptian.