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Nautical Twilight was at 05:12 (a minute ago) but the NE horizon started being noticeably brighter at 05:08 (-13° below horizon, 5 minutes ago). That (-13° sun angle) would be equivalent to 04:28-29 on the earliest!
Last edited by divisionbyzero0; 06-27-2017 at 04:57 PM..
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