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    Lunars from Mt. Everest?
    From: Frank Reed CT
    Date: 2003 Dec 15, 20:37 EST
    Yes, unlikely from Everest!

    But suppose you shoot a practice 'land lunar' from, let's say, Denver. At 5000 feet altitude, the air's a bit thinner and the refraction is proportionately less (about 15%?). So if you're practicing lunars from a backyard on a mountaintop... beware. Forget to correct, and your lunars would be mysteriously off by as much as 0.5 minutes of arc on top of more mundane errors.

    Frank E. Reed
    [X] Mystic, Connecticut
    [ ] Chicago, Illinois
       
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