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Rescuing 1 sources and tagging 0 as dead.) #IABot (v2.0.8.7 |
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Baris 51:
* [http://www.spectralcalc.com/solar_calculator/solar_position.php Twilight Calculator] Compute twilight times.
* [http://www.usno.navy.mil/USNO/astronomical-applications/astronomical-information-center/rise-set-twi-defs Definition of Twilight] {{Webarchive|url=https://web.archive.org/web/20110606224804/http://www.usno.navy.mil/USNO/astronomical-applications/astronomical-information-center/rise-set-twi-defs |date=2011-06-06 }} US Naval Observatory.
* [http://www.usno.navy.mil/USNO/astronomical-applications/data-services/rs-one-year-us Twilight time calculator] {{Webarchive|url=https://web.archive.org/web/20110518135639/http://www.usno.navy.mil/USNO/astronomical-applications/data-services/rs-one-year-us |date=2011-05-18 }}
* [http://herbert.gandraxa.com/herbert/lod.asp Formulae to calculate twilight duration] by Herbert Glarner.
* [http://www.ecy.wa.gov/programs/eap/models/twilight.zip An Excel workbook] with VBA functions for twilight (dawn and dusk), sunrise, solar noon, sunset, and solar position (azimuth and elevation) by [http://www.ecy.wa.gov/programs/eap/models.html Greg Pelletier], translated from [http://www.srrb.noaa.gov/highlights/sunrise/sunrise.html NOAA's online calculator for sunrise/sunset]
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