How To Guides

How to build a tabletop tracking mount

This project is a simple tabletop mount that can track the apparent movement of the stars, which allows you to increase exposure times and capture more light with your camera.

How to keep warm when observing

Winter nights provide a wealth of observing treasures, but they come at a price: sub-zero temperatures. Here’s how to beat the cold to enjoy the sky.

How to observe variable stars

In astronomy, not all stars shine with constant brightness. Here we show you how to chart the changes in variable stars.

How to thermally optimise your telescope

Tube currents in your telescope can affect the ability of the optics to bring light to a sharp focus. We show you how to combat these irritating effects.

How to build a Dobsonian mount

The Dobsonian telescope is simplicity itself: a Newtonian reflector mounted on a basic altaz mount. Many thousands of astronomers have constructed their own Dobsonians, but the satisfaction of building your own mount is immense.

How to clean a refractor

Ensure your refracting telescope is delivering the best views with our cleaning tips.

How to clean a reflector

Ensure your reflecting telescope is delivering the best views of the night sky with our cleaning tips.

How to make a solar projection screen

Record features moving across the face of the Sun with this simple device.

Written by Mark Parrish.

WARNING: you should never attempt to look at the Sun directly through a telescope or with the naked eye, as it can cause irreperable damage.

Turn a redundant SLR lens into a champion accessory

Turn a redundant SLR lens into a champion accessory.

Written by Simon Dawes.

How to star test a telescope

Examine the quality of your telescope’s optics via a simple test to get clearer views of the night sky.

Written by Ian Morison.

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