First, to clarify, astrology is the belief that the positions of celestial bodies has some influence on human affairs. Astronomy is the scientific study of celestial objects and phenomena. People often get those words mixed up.
There are lots of cool astronomy concepts to explore related to the zodiac constellations, so we've decided to focus our February 16th public planetarium programs on this subject. The programs are entitled "What's Your Sign -- Really?", and we hope you can join us. But until then, I thought I'd provide a couple of links to good sources of information related to the subject.
- A Sign of the Times: Sky and Telescope ran a nice article, which included an essay printed in their magazine in 1998.
- An Astronomer Looks at Astrology: (PDF file) the Astronomical Society of the Pacific provided an article which shows how to debunk astrology.
The focus of our public planetarium programs will mostly be about the Earth's motions. We'll explore how it could be that the Sun would appear to be "in" a constellation, and how that would change throughout the year. And we'll show how the Sun's position among the stars has changed over the past 2,000 years. It will be a lot of fun.
Feel free to post comments and questions if you are still struggling with a certain issue or concept.