Amateur Astronomy Under The Big Sky
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  • Cosmos Mariner

    Posted on September 25th, 2012 Lynn Powers No comments

    Shane Larson with two of his home built telescopes

    Cosmos Mariner (or simply “Mariner“) is a recently completed homebuilt 22” f/5 Dobsonian telescope made by SMAS member Shane Larson.


    Cosmos Mariner is what I consider to be my third “personal” telescope; all have been homebuilt. The first was an 8″ f/6 called Albireo that I built in 1995. It served me well for almost six years. I spend a lot of time looking at deep sky objects, and eventually found I was pushing the boundaries of what I could see with Albireo. So when I got my PhD, I decided to step up in aperture, and built my second scope, a 12.5″ f/4.7 Dobsonian named Equinox in 2000.

    In 2007 we moved to a house in the mountains of Utah with dark skies. With Equinox I found I could see things from my new house that I had only seen from dark sky star parties! Like Stephan’s Quintet, the Cocoon Nebula (IC 5146), and extended detached parts of the Veil Nebula. I had just gotten my first tenure track job as an assistant professor, I had fantastically dark skies out my back door, so clearly: it was time to step up in aperture!

    Read the rest of the story and see more pictures on Shane’s website.  Congratulations Shane!


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