NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: A Lunar
From: Frank Reed
Date: 2008 May 30, 08:50 -0400
From: Frank Reed
Date: 2008 May 30, 08:50 -0400
Kent N., you wrote: "- Maskelyne 1763 "within one degree". Seems realsitic due to less accurate ephemerids than we have today and also to less good measuring devices than today - 1840-1850 "between 5 and 30 nautical miles" - 1890-1900 "7-10 nautical miles" All measured on the equator." That sounds reasonable to me. "My own opinion is that the accuracy in longitude should be within 15-20 nautical miles with todays ephemerids and tools." This one puzzles me. What are you suggesting is responsible for the factor of two decrease in accuracy in 2008 compared to 1895? Is this based on experiments or theoretical considerations? -FER --~--~---------~--~----~------------~-------~--~----~ Navigation List archive: www.fer3.com/arc To post, email NavList@fer3.com To , email NavList-@fer3.com -~----------~----~----~----~------~----~------~--~---
