Diagrams of transformational geometry and the special geometrical relationship between the sun and moon that allows for a perfect solar eclipse. 2006
The Size of the Sun and the Moon
In absolute terms, the Sun and the Moon couldn’t be more different in size. The Sun measures 1.4 million km across, while the Moon is a mere 3,474 km across. In other words, the Sun is roughly 400 times larger than the Moon. But the Sun also happens to be 400 times further away than the Moon, and this has created an amazing coincidence.
From our perspective, the Sun and the Moon look almost exactly the same size. This is why we can have solar eclipses, where the Moon passes in front of the Sun, just barely obscuring it from our view.
Read more: http://www.universetoday.com/17109/the-sun-and-the-moon/#ixzz38X4U92qL