This distortion is caused by currents of air at different temperatures which bend and scatter the light passing through the atmosphere. In image 1, a section of the Moon is being videoed notice how the detail is constantly shifting in and out of focus. Before I show any processed images I first want to demonstrate the main limitation facing astrophotography (other than light pollution) atmospheric turbulence. So it is now time to show you some of my attempts at webcam astronomy. Also, during the day, a webcam coupled with a telescope can capture the ever-changing surface of the Sun, meaning you can do astronomy without losing sleep! Not only this but, on Moonlit nights when long exposure photography would produce washed out pictures of galaxies, webcam imaging can deliver great Lunar landscapes. However, webcam astronomy is easy to learn, cheap and quick enough to do between clouds. ![]() Traditional long exposure photography, used to capture faint galaxies and nebulae, is simply out of the question on all but the clearest of nights. I was getting fed up with the annoying short observing time our cloudy nights provide us in the UK. ![]() I had just bought some new equipment and wanted to put my enthusiasm into blog form. ![]() Early last year I posted an article discussing the merits of webcam imaging.
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