Keywords: Hours of daylight vs latitude vs day of year.svg A contour plot of the hours of daylight as a function of latitude and day of the year using the most accurate models described in Sunrise equation This SVG is interpreted differently by firefox inkscape and the wikimedia software I provide this SVG version so people can make other versions if they want I also provide my own PNG version for immediate use Own 2010-02-03 Jalanpalmer <span class signature-talk >talk</span> Hours_of_daylight_vs_latitude_vs_day_of_year png Day length Mean meteorological data of the world Meteorological diagrams Astronomical diagrams Contour plots |