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jpty · Octobre 9, 2024, 10:00

Bonsoir,

Le rayon apparent du soleil est pris en compte en php8 :

github.com/php/php-src

Fix #65547: Default value for sunrise/sunset zenith still wrong

committed 11:52AM - 15 Jul 19 UTC

cmb69

+16 -15

The value of the zenith angle to calculate sunrise and sunset times is commonly …defined as 90°50', and is "obtained by adding the average apparent radius of the Sun (16') to the average amount of atmospheric refraction at the horizon (34')", according to http://aa.usno.navy.mil/faq/docs/RST_defs.php. This value is also used for the Sunrise/Sunset Algorithm published in the Almanac for Computers, 1990, see https://web.archive.org/web/20161202180207/http://williams.best.vwh.net/sunrise_sunset_algorithm.htm.

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