This graph shows hours of daylight as a function of day of year for changing latitudes. It uses a simple point approximation of the sun and does not include changes in daylight hours due to refraction in the atmosphere or the size of the sun.
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.