How To Guides
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.
Written by Mary Spicer.
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.