1. My computing tools

1. Sunrise/Sunset Calculator C++ source
2. Sunrise/Sunset Calculator C source
3. Calculation of Sun position (Azimuth and Altitude), a Java-applet and a C++ source
4. Simple calculations on the Earth and Sun with a Perl script New!
5. A Turbo Pascal source and the compiled PC DOS executable for a simple Sunrise/Sunset calculator
6. Position of Moon, a zip-package EXE and Pascal source (20 kB, updated 21-Apr-2000)
7. Download the Sunrise/Sunset calculator (36 kB) for MS Excel
8. Download the Sunrise/Sunset calendar table for one month period on MS Excel (56 kB)
9. Daylength-Chart (88 kB) for MS Excel with
10. Chart examples on the daylengths
11. Solar energy chart calculated for 22-Sep-2000 on the latitudes 30 and 60 ^o (extinction coeff. 0.9)
12. Location Calculator

2. Useful Diverse Tools on Web

• Sunrise/Sunset Calculator and Sun positon calculator by NOAA
• U.S. Naval Observatory Data Services
• JavaScript Ephemeris by Hayes
• Sun Calendar for whole year (for Australian sites in particular)
• Excellent collection of the links to the solar or any other calculators
• Try and compare Senol Gulgonul´s sun calculator or this one
• Download a Sunrise/Sunset Calculator for Windows 95 or NT4.0
• Sunrise/Sunset and Sunpath plots
• Click on the map and see Sunrise/Sunset Times for today
• Sun's current position on the Earth. The illuminated areas on the Earth are shown.
• Web MICA astronomical calculations of many kinds
• Rise, set and twilight definitions by U.S. Naval Obs.
• Many astronomical terms at Eric Weisstein´s treasure trove of astronomy.
• Sunrise/Sunset Algorithm in short and also by Meeus
• Lectures on Positional Astronomy by Fiona Vincent
• Educational Brief Solar Radiation and the Earth System
• Spatial Solar Radiation Models, TopoView
• Article on solar radiation and energy calculation (in German language)

New! See my Midnight Sun Pictures

Updated March 9th, 2002