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Thread: Official Night time
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Old 7th December 2005 | 11:12
  #7 (permalink)  
RodgerF
 
Joined: Sep 2001
Posts: 255
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From: UK
The best site I have found for this is the US Naval Observatory

at http://aa.usno.navy.mil/

It will calculate SR/SS given lat and long for an entire year. This can be downloaded and printed.
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