NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Bubble sextant instructions
From: Nigel Gardner
Date: 2001 Dec 12, 8:29 AM
From: Nigel Gardner
Date: 2001 Dec 12, 8:29 AM
Like many on in this group I should imagine I have taken more sights than I have had hot dinners with the Mk9 so permit me a couple of tips, don't make the bubble too small for stars as the surface tension makes a small bubble sluggish, in poor conditions dont be afraid to guess where the body is if it is going in or out of cloud for example and finally you do not need to apply Semi-Diameter correction. If you can scrounge a copy of an Air Almanac (which year does not matter) it will give you a composite table of corrections that will be quite accurate enough. NG
