Jerry Payton wrote:
> If given my exact location on the earth (lat/Long), is there a software 
> program to show WHERE my "shadow zone" is located?   What area(s) would be 
> excluded?
> 
> I understand Lat. / Long., but the degrees described with a shadow zone is a 
> little confusing to me.
> 
> Happy Holliday Season
> 
> Regards,
> Jerry Payton 
> 

http://gc.kls2.com/ is a great circle map generator

 one degree = 60 nautical miles:
103 degrees =~ 6180 nm (start of shadow zone)
143 degrees =~ 8580 nm (end of shadow zone)
152 degrees =~ 9120 nm (caustic)

You can enter your lat/long or specify a nearby airport as your origin

For Wellington, New Zealand:
  http://gc.kls2.com/cgi-bin/gc?RANGE=6180nm%40WLG
  http://gc.kls2.com/cgi-bin/gc?RANGE=8580nm%40WLG
  http://gc.kls2.com/cgi-bin/gc?RANGE=9120nm%40WLG
-- 
cheers
Mark Robinson
-------------
24 Dec 1953 151 people die when the Limited express plunges into the river at
            Tangiwai, after the bridge is washed out following the rupture of
            the crater lake of Mount Ruapehu.

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