It seems all pyramids around the world were designed to display important astronomical data (often related to solar and lunar cycles/calendars). One of the best examples is the pyramid of Kukulkan (Chichen Itza, Mexico).
Andras Goczey discovered that 6 small satellite pyramids near the Three Pyramids of Giza display key elements of both solar and lunar calendar…
Khufu Hidden Calendar
by András Göczey, architect
In the common opinion of Egyptologists, the small pyramids next to the great pyramid of Khufu served as burial places for the relatives of the Pharaoh. Certain facts, which have not been previously considered, indicate that there is a chance that the pyramids — due to their ground plan arrangement — are not only burial places but also the components of a yearly calendar. The northernmost one was the pyramid of Hetepheres, the middle one was that of Meritetes while the southernmost one was that of Hanutsen.
As a result of the position of the Ghiza Necropolis on the 30 degrees latitude the rays of the rising Sun accurately indicate the direction of due east at the time of the autumnal and vernal equinoxes; while the Sunrise is directed 28 degrees to the north of this (i.e. N62ºE) at the time of the summer solstice and 28 degrees to the south of this (i.e. S62ºE) at the time of the winter solstice. These angles were built in Ghiza by Khufu’s pyramid and the Queens pyramids! (the distance of SP and apex of Meritetes is 110 m, the distance between the apexes of Meritetes and Hetepheres is 59,25 m by Wikipedia. tg 59,25/110 is appr. 28 degrees!)
This image shows Sunrise at Giza at the time of the summer solstice.
Click to enlarge. The image was generated by The Photograppher’s Ephemeris.
The Photographer’s Ephemeris (TPE) is a free application for Mac/Windows/Linux designed for landscape photographers. It shows you the exact direction of where the sunrise and moonrise will be at any particular location and time using Google maps. Landscape photographers typically wishing to plan their shoots around the times of sunrise/sunset or twilight, or alternatively when the moon is in a particular place or a particular phase. Click on the logo to learn more and download this free program. stephentrainor.com/tools
If, at the time of equinox in both spring and autumn, the rays of rising sun hit the apex of the middle pyramid (Meritetes) horizontally then in spring the shadow of this apex marks a prominently important shade point (SP) on the south-eastern inclined side of the great pyramid of Khufu and in autumn appears in the proximity thereof. The straight line connecting the projection of this SP location to the projection of the apex of the Meritetes pyramid on the ground plan determines an accurate east-west direction. If a straight line is drawn from the SP (shade point) at an angle of N62ºE (i.e. 62 degrees to the east measured from due north), this straight line intersects the apex of the northernmost pyramid (Hetepheres).
Khufu Calendar principles
At the the time of the summer solstice (the beginning of the year) and now only the shadow of the northernmost small pyramid of Hetepheres appears on the shadow point date marker. The apex shadow point of Hetepheres starts moving to the North 77-59 cm a day.
At the time of the autumnal equinox, i.e. the 21st of September, the apex of the pyramid of Meritetes appears coincide with the indicated shadow point date marker, with the shadow of Hetepheres near it.The apex shadow point of Meritetes starts moving to the North 59-77 cm a day.
At the time of the winter solstice and now the shadow of the southernmost small pyramid of Hanutsen appears near the shadow point date marker with the shadows of Meritetes and Hetepheres. The apex shadow point of Meritetes starts moving back to the South 77-59 cm a day.
At the time of the vernal equinox, i.e the 21st of March, the apex of the pyramid of Meritetes appears to coincide with the indicated shadow point date marker, with the shadow of Hetepheres near it. The apex shadow point of Hetepheres starts moving back to the South 59-77 cm a day.
5th of September, 2010. Budapest
Copyright by András Göczey
The Video Link: http://www.youtube.com/watch?v=d816AkwMbHM
Menkaure’s Hidden Calendar
Menkaure, Hathor, and Cynopolite Nome
Old Kingdom, Dynasty V. 2548-2530 BCE Green schist (Greywacke)
3 feet 13/8 inches high (Egyptian Museum, Cairo)
Every woman has a date on the moon of their own: it is of course 28 days menstruation cycle…
PS Other Pyramids and Temples
Here are the real degrees to find the moon in the evening.
The Bent Pyramid
Slope angle: Measured | Theoretical
Lower part: 54° 27′ | 54° 44′
Upper part: 43° 22′ | 43° 24′
For the lower part of the Bent pyramid the slope angle is 54.46 degrees.
Notice that 54.46 + 30 + 5.12 is nearly perfect 90 degrees!
For example the ground beneath the pyramid of Sneferu (father of Khufu) in Dahshur gave way under the weight and caused damage in the casing. Another outer layer of casing had to be added, changing the angle of inclination from 60° to 54.46°. But again structural problems with the subsidence developed, the casing slipped and more damage occurred. In the end the angle of inclination had to be drastically lowered to 43.99° . Now this pyramid is called the Bent Pyramid, because of its shape.
I don’t think that there were structural problems! It is 90 degrees to get the Moon when you look up along the northern slope of the pyramid.
Here is the calendar from Kom Ombó. …28th days, and after it start as II-th day