NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Pub249 etc
From: Ron Irwin
Date: 2007 Sep 9, 17:44 -0700
From: Ron Irwin
Date: 2007 Sep 9, 17:44 -0700
On my 55th birthday my wife suggested I look for an opportunity to exercise my brain. As we get older mental exercise becomes more impotant. Considering my love of sailing, celestial navigation seemed a natural quest. With the internet I was able to discover this incredible group with members of a caliber and knowledge I am humbled to address. Through Schlereth, Howell, Bowditch and others i have come to a grasp of the process but have a few questions on implementation. My question is in regards to the Polaris tables in Pub 249. The formula as stated in in tha Almanac = Ho -1 degree + a0 +a1 + a2 I understand A0 and A3, and assume A2 is reflecting the oblation of the earth. But what is the -1 degree about? The further I get into this the more it fascinates me. I especially enjoyed the Shovell discussions. Thank you, Ron Irwin ____________________________________________________________________________________ Take the Internet to Go: Yahoo!Go puts the Internet in your pocket: mail, news, photos & more. http://mobile.yahoo.com/go?refer=1GNXIC --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to NavList@fer3.com To , send email to NavList-@fer3.com -~----------~----~----~----~------~----~------~--~---
