Tuesday, October 8, 2013
I am taking a short astronomy course at the local high school. The teacher is an architect, and avid amateur astronomer and a really good teacher. The subject tonight was the size of things in the universe. He started with scale models of the planets, some of which were the size of peppercorns. Our sun was a soccer ball, in comparison. Then he wanted to show us that the sun is an ordinary star, and this slide shows some red giant stars, Betelgeuse at left and Antares, on the right. He is pointing at our sun, which is a tiny dot at the end of his finger, and miniscule in comparison.
Posted by Ken Spencer at 8:46 PM