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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Strange result from MICA
From: Paul Hirose
Date: 2015 Apr 09, 12:40 -0700
From: Paul Hirose
Date: 2015 Apr 09, 12:40 -0700
On 2015-04-08 10:56, Sean C wrote: > Here is a copy of an output I just got from MICA: > > Sun > > Newport News, Virginia, United States > Location: W 76°28'36.0", N37°03'18.0", 10m > (Longitude referred to Greenwich meridian) > > Date Begin Rise Az. Transit Alt. Set Az. End > (UT1) Civil Civil > Twilight Twilight > h m h m ° h m ° h m ° h m > 2015 Apr 08 (Wed) 10:15 10:42 80 17:08 60S 23:34 280 ///// Apparently the algorithm looks for begin twilight, rise, etc. in that sequence on the same day. Since you selected UT1, and the Sun doesn't set until 2334 UT, end of twilight doesn't occur until the next day. In the window where you make the time settings, change time zone to your local time and all should be well.
