Schmitt-Cassegrain Collimation Made Easy Using a Duncan Mask


For any telescope to perform at its best, the optical elements must be aligned. With its magnifying secondary mirror, a Schmitt-Cassegrain is particularly sensitive to collimation. This process can be made quite simple by using a Duncan Mask which is very easy to make yourself and it removes the ambiguity of whether you have the optical elements precisely aligned. Click to read more

The International Dark Sky Association names two new UK dark sky places


On December 9th 2013, the International Dark Sky Association (IDA) announced that it has designated two new International Dark Sky Places in the United Kingdom, including one representing the largest land area of protected night skies in all of Europe. Click to read more