Back to
Astronomy Home Page

Another Point of View

A purely educational page

Next Page


This diagram is intended as a lesson in the interplay between different kinds of solutions. The very top diagram shows the modern Earth-Venus diagram with the ancient Ptolomeic projected below (Earth in the centre surrounded by the Sun orbiting through the zodiac, and Venus orbiting around the Sun). The top right diagram shows how four of Venus's orbits placed on and around the Sun's / Earth's circle almost touch and is derived from the Ptolomeic projection. It may be recalled that if the Earth's outer and Venus's inner orbits are taken then the four circles effectively do touch with 99.9% accuracy (see Marital Bliss). The bottom diagrams show the distances and passage of Venus around us.