Telescopes Cost: Acceptable, Good, and Really Good Telescopes

When I do public outreach, either at the Observatory, at star parties, or when doing sidewalk astronomy, a common question I get when people see my “huge!” (really mid-sized) 6” Dobsonian telescope, or my “ENORMOUS!” (really just big) 10” Dobsonian telescope, is “how much does something like that cost?” People are often shocked by the … Read more

Telescope Specs Explained

If you’re choosing an astronomical telescope as a beginner astronomer, you may find yourself somewhat overwhelmed. Telescopes are advertised in various different ways with different numbers and properties. Let’s take a look at what the specifications of a telescope are and what they mean. A Common Shorthand A common shorthand for telescope specifications is “Aperture/Focal-Length” … Read more

Different Types of Asteroids (C, S, and M) – The Definitive Guide

Many people think of asteroids as being small chunks of rock that drift aimlessly and randomly through space. The reality, of course, is a little different, but it wasn’t until relatively recently that we began to discover more about them. For example, we now have a better idea of their origins and their composition. Asteroids … Read more