This page last modified 2012 January 09
Please be aware that some of these are programs are shareware and require a payment to the author if you use them beyond the trial period.
Mel Bartels' program for controlling a dobsonian telescope from a PC, using stepper motors. Bartels's original altaz program can be found here. It contains construction details, circuit diagrams, images.
David Chandler's flotation cell design program -- 9-, 18- or 27-points
Mirror testing based on Richard Berry's method.
Generates a diffraction grating for the "big end", which you print out on a transparency. One of several bits of useful software from COAA.
Simple raytrace program for achromatic doublets. Self-extracting archive.
Comprehensive raytrace program.
Spreadsheet for Millies-Lacroix reduction of the Foucault test -- Microsoft Works and Lotus123 format.
- newt20.zip & newt25.zip
Newtonian telescope CAD program. It uses a GUI to design a Newtonian telescope, and allows you to modify all the parameters. Capabilities include:
- Display a side view of a newtonian telescope.
- Modify all parameters like mirror diameter, diagonal minor axis, focuser height, focuser inside diameter, tube inside diameter and thickness, and many more.
- Use inches, centimeters, or millimeters as the unit of measure.
- Calculate baffle size and placement.
- Calculate diagonal offset.
- Calculate fields of 100% and 75% illumination.
A variety of formulae, etc, of interest to the ATM.
SIXTESTS uses a series of test measurements to compute the mirror profile errors, several mirror evaluation parameters, and the resultant diffraction pattern.
This public domain file contains the generic BASIC source code and the compiled EXE file for Jim Phillips' program SPRINGCW.BAS, which calculates spacings for a telescope spring counterweight system as described in Sky and Telescope, November 1999, pp 130-134.
Larry Phillips' and Dale Eason's program for Foucault test reduction based on Jean Texereau's method.
Gerald Pearson's program for determination of vignetting in Newtonian type telescopes.