NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Francis Upchurch
Date: 2015 Feb 26, 02:03 -0800
Robin,
that is interesting!
I'm no mathematician, and don't really understand simple numbers, never mind complex ones! However, am I right in thinking that if you had sterographic projection charts (flat), you can place circles of equal altitudes directly on this and get a fix with 2 intersections? i.e, like using the big globe idea, but instead using flat (stereographic) charts? Is that correct? If so, any advice on where to get stereographic charts to do this?
Also, intriqued by the possibility of reducing lunars by purely graphic means. Could you show me an example if this can be done?
This could save me a lot of engineering work. was thinking about building a globe to do this! would rather use stereographic charts if feasible.
Best wishes
Francis
