A few astronomy related DIY projects and astronomy hacks, from reducing light pollution to building filters and spectroscopes. All these projects can be built with everyday household items.


4th April 2014Projects
I've just uncovered my old telescope, how do I go about making it usable again? How do I clean the mirror? How do I get everything back together properly?
15th February 2014Projects
The Bahtinov mask is a device used to accurately focus astronomical telescopes. It is named after its inventor Pavel Bahtinov.
3rd November 2013Projects
Detailed guide with pictures on how to install the SynScan GoTo upgrade kit for HEQ5 mounts.
28th September 2013Projects
Guide for modifying the Microsoft LifeCam series of webcams for use with astronomy which should fit snugly into a standard 1.25" focuser.
2nd May 2013Projects
This guide shows you how to perform an optical alignment your Newtonian telescopes mirrors and get the most from your reflector telescope. It will look at using a homemade Cheshire eyepiece as well as using a laser collimator for accurate results.
3rd May 2009Projects
The Hartmann mask and Scheiner Disk are simple devices for making focusing a lens easier. They require that you target is a point of light, such as a star or distant planet, therefore are no good for day-to-day use.
1st May 2009Projects
This star trails tool will give an estimate to how long an exposure you need for star trails to form at a given focal length and target declination.
1st May 2009Projects
This is a simple construction method for a diy solar filter to be fitted over the front of a camera lens. The filter in this case is a section of Baader film and is designed to fit the the end of a telephoto lens. Auto focus still functions correctly on my Canon EOS 350d.