Building a DIY Barn Door Tracking Mount for Long-Exposure Astrophotography

Getting quality astrophotography shots comes with several challenges, and one of the main ones is that the starts don't stand still -- or, more accurately, we don't. Since the Earth enjoys spinning on its axis once every 24-hours or so, exposures in excess of about 1 second begin producing star trails unless you have the camera or telescope on some sort of tracking mount.

Fortunately, if you don't have the money to purchase a $1,000+ equatorial mount but still want to take long-exposure astrophotography, the DIY barn door tracking mount above will enable you to do so on the (relatively) cheap.

Cardiff Camera

Camera Used For Stargazing Helps Detect Common Form of Sight Loss

Here's yet another example of how technology used in space can help us earthlings in other ways. A partnership between scientists at Cardiff University and the UK Astronomy Technology Center has yielded a prototype device that can help detect Age-Related Macular Degeneration (otherwise known as AMD) -- a common form of sight loss -- using camera technology designed originally for use on space telescopes.