Astronomy for Beginners

New to astronomy? Not sure how to get started in stargazing or which telescope to buy?

Here’s where you’ll find observing guides, how-to articles and great astronomy hints and tips. Don’t forget to check out our comprehensive astronomy dictionary.

Astronomy Dictionary
Astronomical Unit (AU)

One AU is a unit of distance equivalent to roughly 150,000,000 km.

Orographic clouds

These are clouds that form as air is forced to rise over high obstructions on the surface of a planet. This could be a mountain on Earth or a volcano on Mars, for example.

Open cluster

A group of stars that formed together in the same cloud of gas, and are gravitationally bound together. Open clusters can contain up to a few thousand stars.

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