Abstract: the article deals with the version to determine the age of the Great pyramid in the parameters of the Earth’s motion which it had in the epoch of building the pyramids. This is a brief description of the third and fourth movements of the Earth, called the orbital run-in and drift of the Earth. The parameters of these movements are used to determine the age of the pyramid. The description of the construction of the pyramid is marked by special details in its design. It is shown that in the construction of the pyramid the data on parameters of movement of the Earth and other information are encrypted. The regularities in the ratio of the design parameters of the pyramid and parameters of the motion of the Earth are revealed. The method of determining the age of the pyramid in the drift and the angle of tilt of Earth’s axis that the Earth had in the epoch of building the pyramids ia developed. Three calculations to determine the age of the pyramids, which gave approximately the same value are performed. The average age of the Great pyramid is 10485 years BC. It is shown that this value of the pyramid age is almost identical to the value defined by the known astronomical version of three bright stars in the constellation of Orion, which is 10450 years BC.
Keywords: the Great pyramid, the pyramid age, orbiting run-in of the Earth, the drift of the Earth, the Earth’s axis, the design of the pyramid