Five Minute Lectures

Here are a few essays that might be useful to amateur astronomers.
Some are from lectures given at meetings, some were from other sources.

The Most Fabulously Useful Formula In Astronomy	-- by Tom Lougheed
Daylight Collimation of an SCT or Maksutov	-- by Robin Casady
Telescope Eyepieces: A Discussion For The Beginner	-- by Jay Reynolds Freeman
How Coyote Made The Milky Way	-- Native American Tradition
Introduction to CCD Imaging	-- Arthur Babcock & Robin Casady