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    Backyard winter sextant observatory?
    From: Jim Thompson
    Date: 2005 Apr 19, 18:04 -0300
    I'm going to have to build a backyard winter observatory.  Too much of the year is too cold for sextant work.
    My thought is to put a plexiglass dome in the roof of a small, lightweight, insulated structure that I could heat with a 110 volt heater in a few minutes.  Has anyone done that?  Where would I get the dome?
    If it was sufficiently lightweight, it could be transported to beach locations for winter sights using a natural horizon:
    http://jimthompson.net/boating/CelestialNav/PEISextant.htm.  Even cutting out the wind would be a blessing. 
    Ideally it should accomodate two people for teaching, but that would greatly diminish it's portability.

    Jim Thompson
    jim3 at jimthompson dot net
    Outgoing email scanned by Norton Antivirus  


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