penumbra

Penumbra (def): The lighter outer part of the shadow cast on an object as seen during a partial eclipse.

If you’re looking to buy or have already have one, you might be wondering ‘where should I store my…

You might be in the market for buying a new telescope and wondering which is better Celestron vs Orion…

What’s a Dobsonian and why is it different to other telescopes for astronomy? In the following, I discuss the…

Should I use my telescope with or without my glasses? It’s a dilemma most eyeglass wearers have when using…

Wanting better planet or moon observations? There are many modern eyepiece designs to choose from and knowing what to…