NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Green Flash and Longitude
From: Frank Reed CT
Date: 2006 Jan 5, 17:44 EST
From: Frank Reed CT
Date: 2006 Jan 5, 17:44 EST
Doug Royer, you wrote: "Conditions, both atmospheric and the observer's angle, have to be just perfect at the time of setting for this event to even be witnessed. When it does happen it is quickly over. A few seconds of time and it's gone. The Sun's upper limb is already kissing or slightly below the horizon when this event does happen. I just can't imagine how it can be done as stated. There are easier ways to accomplish the same thing." Yeah, I agree. There's nothing navigationally significant about the green flash, that I can think of, that would make it any different from any other sunset. It's an attractive phenomenon regardless. By the way, I, too, have "seen" the green flash, but like you I have to wonder whether there was some wishful thinking involved since it was over so quickly. There's no doubt that it's a real phenomenon --it can be photographed and video-ed-- but it's not exactly an obvious thing. -FER 42.0N 87.7W, or 41.4N 72.1W. www.HistoricalAtlas.com/lunars
