About Daylight Hours, Twilight, Civil Twilight, Nautical Twilight and Astronomical Twilight
Download Sunset Calculator Lite for Windows Phone
Civil Twilight Calculator by Aviametrix, LLC
Do you know how to calculate Sunrise or Sunset using Nautical Almanac (NP 314)? Here's a full video about calculating sunrise and sunset.... | By The Millennial Seafarers | Facebook
Sun rise, set and twilight times calculated using a simple iterative scheme and implemented as a QBASIC program, an Excel spreadsheet using VBA and as a plain spreadsheet.
Use the Sunrise/Sunset Calculator at timeanddate.com | Chegg.com
How to calculate sunrise using a nautical almanac - Quora
Dawn, dusk and twilight | Meanings and Timings
HMNAO: Daily Rise/set and Twilight times for the British Isles
How To Calculate Sunrise using a Nautical Almanac! - YouTube
AstroPages | Twilight | Western Washington University
Basic Of Celestial Navigation – My Sea knowledge by: 2/0 John Anthony Dana
trigonometry - How to calculate civil twilight timings? - Mathematics Stack Exchange