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
Yarkovsky effect

This is an effect that can change the movement or rotation of tiny rocky particles and small asteroids in space, caused by the absorption and reemission of photons of light. The result is that asteroids can be slightly perturbed in their orbits by this effect.

Stroboscopic imaging

A type of imaging technique that allows studies to be made of oscillating or pulsating celestial object such as a pulsar.


The part of the shadow cast by an eclipsing body that results from the Sun being only partly eclipsed.

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