The software listed here may be downloaded for free. These programs will help you to prepare and analyze solar observations. If you have any questions please feel free to contact us: firstname.lastname@example.org.
- AAVSO Software User Agreement - Please read before downloading any software.
- SunEntry - A Java-based program used for creating and submitting reports which works on most platforms. NOTE: This program replaces the old SolObs and SUNKEY programs which should no longer be used.
- Spotplot.exe - Stonyhurst template program. Draws solar disk for sunspot plotting. Written by Joseph Lawrence.
- Solar Spreadsheet - Spreadsheet for Calculation of Ra and Ri Statistics
- Spreadsheet for calculating the length of a sunspot group or large sunspot - By Bill Wilson
See also the AAVSO SID Software page.