Drawing of Observatory
Select a Calculation
Magnification
Focal Ratio
Exit Pupil
Apparent Field
True Field
Dawes Limit, Resolving Power
Some Useful Astronomical Formulae for Telescopes
Some Useful Astronomical Formulae for Astrophotography
Some Useful Miscellaneous Astronomical Formulae
More Miscellaneous Astronomical Formulae
Some Astronomical Sources

Please send me your suggestions for additional arithmetic relations that you think our club members would find useful. Please also send any "bug" reports. Thank you for your interest, Ray Shapp

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Maintained by Ray Shapp
Page last updated 10/05/2001