Hello Chris


That is a good example of how they could support a left of stone for sighting at a star.

But there is new problem caused by this and I’ll try to explain as best I can.

If we consider a square tube 8 inches by 8 inches and X inches long then.

If the tube were 473.15 inches long then the total line of sight angle would be about .96876 degrees.

If the tube were 946.3 inches long then the total line of sight angle would be about .48438 degrees.

If the tube were 1892.6 inches long then the total line of sight angle would be about .24219 degrees.

From this we can see that the shorter the tube then the wider the field of view. So they would need a very long tube in the constructed shaft to get any accuracy. By taking out a section higher up in the shaft to sight through would in fact reduce the accuracy of sighting any particular star.

Just my opinion but from every way I look at it sighting through the GP shafts to spot any one star seems unlikely.

However I will concede that by working from a predetermined measured angle and then just constructing the shafts as close as they could to those predetermined angles a desired star indicating maybe possible.

If we consider the OCT for the KC south shaft then it must accurately pinpoint Khufu’s star should it not? I mean he would not want to be linked to Khafre’s star would he?

So sighting through the shaft seems less accurate.

RLH