Astronomy compels the soul to look upwards and leads us from this world to another.


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.


Resurrecting an Old Telescope
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?
How To Make and Use a Bahtinov Mask
15th February 2014Projects
The Bahtinov mask is a device used to accurately focus astronomical telescopes. It is named after its inventor Pavel Bahtinov.
How To Install SynScan GoTo Upgrade Kit for HEQ5
3rd November 2013Projects
A detailed guide with pictures on how to install the SynScan GoTo upgrade kit for excellent HEQ5 mounts.
Converting Microsoft LifeCam for Astrophotography
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.
Newtonian Telescope Collimation
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.
How To Make and Use a Hartmann Mask
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.
How To Calculate Star Trails
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.
How To Build a DIY Solar Filter
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 end of a telephoto lens. Auto focus still functions correctly on my Canon EOS 350d.