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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Sun sights and retinal scars
From: Richard B. Emerson
Date: 2000 Dec 11, 7:03 AM
From: Richard B. Emerson
Date: 2000 Dec 11, 7:03 AM
I have an eye exam coming up on Wednesday and I'll specifically ask the ophthalmologist check for signs of retinal scarring. I've used 4x and 6x scopes for sun sights and used pre-computed altitudes, bringing the sun down to the horizon, and just plain estimates to do sun sights with a variety of sextants. While saiors using cross-staffs and other devices requiring direct observation certainly were at great risk, common sense in using modern sextants and their filters reduces the likelihood of problems significantly. Rick S/V One With The Wind, Baba 35
