How To Guides

How to build a star simulator

Misaligned mirrors are one of the common causes of reduced image quality in reflecting telescopes, but one that can be solved with collimation. In this project, we’ll show you how to make a star simulator, a device that can be used within the home to both check and correct the collimation of a reflector so you’re able to make the most of your observing sessions.

Written by Kim Clark

Catch breathtaking stills and videos that show the Earth’s spin

Catch breathtaking stills and videos that show the Earth’s spin.

Written by Mary Spicer.

This easy way of taking flat frames will help your image processing
This easy way of taking flat frames will help your image processing.
 
Written by Steve Richards.
How to build an observing chair
Say goodbye to wet knees and aching joints with this DIY project – an observing chair that folds flat for easy storage.
 
Written by Mark Parish.
A simple project to help you to locate targets with a Dobsonian.
A simple project to help you to locate targets with a Dobsonian.
 
Written by Steve Richards.
How to make a simple all-sky camera
An all-sky camera is an ideal tool for capturing the majesty of the celestial sphere turning silently overhead, and in this How to we’re going to explain how you can make one of your own. With it you can make timelapse videos that reveal the movement of the stars as well as record bright meteors and satellites.
 
Written by Martin Lewis.
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.
 
Written by Mark Parish.
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.

Written by Grant Privett.

How to observe variable stars
Not all stars shine with constant brightness. Here we show you how to chart their variations.
 
Written by Gary Poyner.
How to thermally optimise your telescope
We show you how to combat the irritating effects of tube currents.
 
Written by Martin Lewis.
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