A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Position-Finding
From: Geoffrey Kolbe
Date: 2017 Oct 7, 03:50 -0700
David Pike wrote:
"I decided to take Amundsen literally and see if it was possible to use the top surface of ‘dark glass’ for a horizon.I bought the darkest piece of welder’s facemask glass I could find for £1GBP.
Well, that is a lot cheaper than a Freiberger artificial horizon, which is also a 'dark glass' AH. I have found it seems quite adaquate for solar and stellar observations. It is somewhat fiddly to set up though, particularly if what it is sitting on is not literaly 'rock solid'.