NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Frank Reed
Date: 2010 Mar 18, 02:18 -0700
Nice crowd there, Jim! Here's a photo of a lunars class from September, 2005 (you can read about it in the NavList archives). We're at Stonington Point in Connecticut. Until more recent events that we've organized, that may have been the largest group of people shooting lunars as a group since, maybe, the 1970s? Or the 1890s?? In this group there are four NavList members counting me. I'm on the far right. Of the others, three have passed away.
This group on that day had an average error in shooting lunars of something like 0.3 minutes of arc with one significant exception. One of the people who had never held a sextant before managed two 0.0 sights in a set of four. He was an experienced photographer so comfortable with optical instruments. The exception was poor Dan Allen who had driven all the way from the West Coast for the party. He kept getting errors of 2' or so. Don Treworgy and I tried his sextant and had similarly bad results. We checked for all the usual things, but there was no obvious cause. I have to assume it was that catch-all "arc error".
By the way, have you run into anyone shooting sights by chance (not a class that you knew about) in the past ten years? Yesterday was a first for a random sighting for me in a very long time.
-FER
----------------------------------------------------------------
NavList message boards and member settings: www.fer3.com/NavList
Members may optionally receive posts by email.
To cancel email delivery, send a message to NoMail[at]fer3.com
----------------------------------------------------------------