The Great Pyramid grand gallery faces west to map the sky,
The Astronomical platforms of Abu Roash and Zawiyet el Aryan. ...face North
The Catchpenny image of the 3 Starmaping/platforms had me pondering if the 3 are near to
23.5 angle ?
If so....and If more ancient than Dynastic Egypt...
The builders viewing/mapping the Celestial Precession and sky knew the Earth was 23 degree
Their reasons for this complex building project and star mapping project is ??? : )