NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Sextant Accuracy and anomalous dip.
From: Gary Harkins
Date: 2003 Mar 17, 19:48 EST
From: Gary Harkins
Date: 2003 Mar 17, 19:48 EST
In a message dated 3/17/2003 2:45:15 PM Eastern Standard Time, george@HUXTABLE.U-NET.COM writes:
Is your house at sea level? If not you will have error caused by your elevation. Usually these can be ignored at moderate elevations, but in your case, attempting to get ultimate accuracy, they may be a factor. The error will be greater when the sight is a smaller Hs.
Just a thought!
Gary Harkins C400 #140 "Cygnus"
Website http://www.hometown.aol.com/htycgary/myhomepage/index.html
Harbour Towne Marina, Muskegon, Michigan Slip C-28
Harbour Towne Yacht Club, Life Member
C400 National Association
United States Power Squadrons-JN
NRA Life Member
MCRGO (Michigan Coalition for Responsible Gun Owners)
JPFO (Jews for the Preservation of Firearms Ownership)
My general objective is to get these observations as accurate as.
possible, say to within 0.1 or 0.2 miles. I'm not sure why I have this
objective, but it persists
Is your house at sea level? If not you will have error caused by your elevation. Usually these can be ignored at moderate elevations, but in your case, attempting to get ultimate accuracy, they may be a factor. The error will be greater when the sight is a smaller Hs.
Just a thought!
Gary Harkins C400 #140 "Cygnus"
Website http://www.hometown.aol.com/htycgary/myhomepage/index.html
Harbour Towne Marina, Muskegon, Michigan Slip C-28
Harbour Towne Yacht Club, Life Member
C400 National Association
United States Power Squadrons-JN
NRA Life Member
MCRGO (Michigan Coalition for Responsible Gun Owners)
JPFO (Jews for the Preservation of Firearms Ownership)