PaulWoodIII/SunCalPlayground — pull request #1 by asadoughi (2014-12-21 23:53:18+00:00)
Title: Added 50 minutes to zenith

Official sunset is 90 degrees 50 minutes according to https://github.com/asadoughi/SunCalPlayground/blob/1881237ad60878071712b59baa1d82c7944807c9/SunCalPlayground.playground/section-1.swift#L13

In practice, this corrected my computations.