Astronomy articles to help you discover the wonders of the universe.

Telescope Calculator

Calculate magnifications based on telescope properties

Written By on in Astrophotography

143 words, estimated reading time 1 minutes.

What's the optimum magnification for my instrument? Is the field of view of a given eyepiece too small to see all of the Moon? Is there a minimum magnification for my scope? What sort of limiting magnitude should I expect with an instrument of a given aperture? You can find answers to all these questions and many more besides with this interactive telescope calculator.

Telescope
aperture
Telescope
focal length
Eyepiece
focal length
Eyepiece
apparent field
Here is an analysis of your telescope's performance using the parameters selected above:

Telescope aperture (d) and focal length (F)
Telescope aperture (d) and focal length (F)
Telescope eyepiece focal length (25mm & 10mm) and apparent field (52)
Telescope eyepiece focal length (25mm & 10mm) and apparent field (52)

Last updated on: Friday 8th September 2017

 

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