If you have found the educational materials of the https://astro.unl.edu website useful, please consider making a donation to the development effort. It is tax-deductible! Contributions can be made through the UNL Astronomy Education Support Fund at https://nufoundation.org/fund/01164090/ on the University of Nebraska Foundation website.
Union Seasons
Note that the altitude of the noon time Sun casts shadows of different length throughout the year.
Planetary Positions
The motions of planets in the plane of our solar system determines where they show up in a horizon diagram.
Star Trails
The altitude of the North Celestial Pole varies depending upon your latitude.
This fund shall be used to support the wages, benefits, equipment, and travel expenses needed by programmers, web designers, and graphic artists developing content and tools for astronomy education. It is under the direction of:
Dr. Wendy Smith, Director UNL Center for Science, Mathematics, and Computer Education
College of Arts and Sciences
University of Nebraska – Lincoln