This file is from a shared repository and may be used by other projects.
The description on its file description page there is shown below.
Summary
DescriptionSubsolar point date graph.svg
English: Approximate dates when the solar zenith angle reaches a minimum of 0 degrees vs latitude by CMG Lee superimposed on an equirectangular world map from http://commons.wikimedia.org/wiki/File:World_location_map.svg by STyx. The example in blue shows the dates of Lahaina Noon at Honolulu, Hawaii, USA. The red curve is obtained from the Declination of the Sun equation δ=-23.45°*cos[360°/365*(N+10)], where, δ is the Declination of the Sun in ° latitude, N is the day of the year ranging from 1 to 365.
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.
Approximate dates when the solar zenith angle reaches a minimum of 0 degrees vs latitude superimposed on an equirectangular world map. The example in blue shows the dates of Lahaina Noon at Honolulu, Hawaii, USA.
This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.
If the file has been modified from its original state, some details may not fully reflect the modified file.
Short title
subsolar point date graph
Image title
Approximate dates when the solar zenith angle reaches a minimum of 0 degrees vs latitude by CMG Lee superimposed on an equirectangular world map from http://commons.wikimedia.org/wiki/File:World_location_map.svg by STyx. The example in blue shows the dates of Lahaina Noon at Honolulu, Hawaii, USA.