Common Telescope Formulas


This page is an attempt to gather most of the formulas used with telescopes. I do not grant that all formulas here are correct, but I've been using most of them when building my own scope. Please always use the same units. I prefer working with millimeters. Some formulas are only applicable when one parameter is given in a certain unit that is then written next to the dimension, between square brackets, as in : D[mm].

General formulas

  • Definitions
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