Astronomy for Beginners

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

Astronomy Dictionary
Helioseismology

The study of the internal structure of the Sun, performed by examining how pressure waves propagate within it.

Heliopause

Point where the pressure of local interstellar gas and dust overwhelms the solar wind. This stops it expanding into space.

Dobsonian

The Dobsonian telescope is a design of telescope that was lauded by the famous American astronomer Jon Dobson. It is based on a simple design – usually a large Newtonian style reflecting telescope mounted on a basic alt-azimuth mount. This type of telescope excels if you are interested in observing the night sky; as the simple, relatively cheap design means that, for the cost, a larger primary mirror can be incorporated.

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