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
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
There are a lot of good reasons to buy a used telescope, especially right now. Given the current global economic crisis, many folks may not have enough money to buy the scope of the brand of their dreams new from the manufacturer. There’s also the factor that buying used opens up a much greater range … Read more
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
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