Diameter of Charles Messier's Telescope

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Discussion Overview

The discussion centers around the diameter of the telescope used by Charles Messier to compile the Messier Catalog, touching on historical details and sources of information regarding his telescopes.

Discussion Character

  • Exploratory, Historical

Main Points Raised

  • One participant claims that Messier's telescope had a diameter of 100 mm (four inches).
  • Another participant references a source from a 1807 book that lists the telescopes Messier used between 1765-69.
  • Several participants share personal experiences related to searching for information online.

Areas of Agreement / Disagreement

There is no explicit consensus on the diameter of the telescope, as the discussion includes a claim and a reference to historical sources without further verification or challenge.

Contextual Notes

The discussion does not clarify the reliability of the sources cited or the specific telescopes used by Messier during different periods.

Who May Find This Useful

Individuals interested in the history of astronomy, the Messier Catalog, or the development of telescopes may find this discussion relevant.

AstroCody
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What was the diameter of the telescope that Charles Messier used to make the Messier Catalog?
 
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Messier telescope was a 100 mm (four inch) refracting telescope.
 
Thanks for the answer.
 
You're welcome. It was pretty easy to google.
 
I would imagine. I tried finding it before but didn't search for the right thing.
 
It happens. I was called a google master by someone on the forum once but there are still times when I can't find the chair that I'm sitting on. :oldtongue:
 
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