penumbra

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

In addition to a great telescope, there are many reasons to consider a good set of binoculars for astronomy. ...

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This buyer’s guide covers what the beginner needs to know on getting a budget-priced best telescope under 200. Best ...

Astronomy opens the door to the universe. It comes with having to learn new terms and technology. The jargon ...

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If you’re wondering about that ring around the Moon and what it means, you might be interested in the ...

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

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