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
Colour fringing

Another name for chromatic aberration.

Kuiper Belt

A region beyond the orbit of Neptune, between 4.5 and 7.5 billion km from the Sun. The Belt is composed of small rocky and icy bodies and inhabited by several dwarf planets including Pluto.


These are rocky worlds found by extrasolar planet searches in recent years. They’re more massive than the Earth, but generally no larger than about 10 Earth masses.

We use cookies to improve your experience of our website. Cookies perform functions like recognising you each time you visit and delivering advertising messages that are relevant to you. Read more here