A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: John Brown
Date: 2015 Dec 17, 13:41 -0800
Gary, you wrote:
...If you don't know what star is visible through a hole in the clouds then just shoot it anyway and figure it out later, it's not that hard. If it turns out that you con't then figure out which of the 57 navigational stars you just shot then the HO 2102-D wouldn't have been of any help to you anyway since it only shows those 57 stars. In this case, even if you have a 2102-D, you will have to work it out using the list of 173 stars in the Nautical Almanac.
If I shot a random star through a passing gap in the clouds I would first use 2102-D to try to identify it - same set up, just post obs instead of pre. If it wasn't there and we weren't in nav extremis I would rather not tackle the list of 173 alternatives. ;-)