NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Latitude by Lunar Distance
From: Peter Fogg
Date: 2006 Oct 7, 10:39 +1000
If the effects of parallax and refraction are ignored, then the angular distance between two celestial bodies is going to be identical from any point on earth from which it can be observed at that moment? In other words; this angular distance is invariant with respect to position?
For this method to work the angular distance would need to change according to the observer's position?
Could Frank perhaps explain this process in more detail, including a fully worked example?
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From: Peter Fogg
Date: 2006 Oct 7, 10:39 +1000
On 10/5/06, Frank Reed wrote:
Here's an example of fixing your position using angles measured from
the Moon to stars only, no altitudes whatsoever. This approach assumes
that GMT is a known quantity ...
If the effects of parallax and refraction are ignored, then the angular distance between two celestial bodies is going to be identical from any point on earth from which it can be observed at that moment? In other words; this angular distance is invariant with respect to position?
For this method to work the angular distance would need to change according to the observer's position?
Could Frank perhaps explain this process in more detail, including a fully worked example?
--~--~---------~--~----~------------~-------~--~----~
To post to this group, send email to NavList@fer3.com
To , send email to NavList-@fer3.com
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