NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Greg Rudzinski
Date: 2012 Aug 5, 16:06 -0700
David,
Look into an aircraft bubble octant as a way to practice celestial navigation on land. There are several models at good value on ebay. I like the U.S. Navy MK V because the optics are good and there is a horizon in feature that allows for conventional sea horizon use. They are about the ugliest CN tool ever devised. A tool that would even shock a pirate. Just remember though that beauty is a thing that works ;-)
Greg Rudzinski
[NavList] Practice Bubble vs. Professional Bubble
From: David Fish
Date: 5 Aug 2012 13:28
Wondering if folks have an opinion as to whether it's worth spending the $ for the Celestaire professional bubble horizon (vs. practice bubble) for practice ashore.
Have heard that the bubble itself is more useful (dampened?) in the pro horizon.
Another consideration is that we live in what the astronomy folks would call a "white zone" with a lot of light pollution (Cape Ann, Massachusetts, USA).
So my thinking is that the dimmer-controlled lighting of the pro bubble might allow me to extend observation time into very late twilight on into early nighttime for star shots.
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