Stargazing Diameter of Charles Messier's Telescope

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Charles Messier utilized a 100 mm (four inch) refracting telescope to create the Messier Catalog. The discussion highlights the ease of finding this information through online searches. A participant humorously notes their occasional difficulty in locating simple information despite being skilled at searching. Additionally, a reference to a SEDS page provides historical details about the telescopes Messier used from 1765 to 1769. The conversation emphasizes the accessibility of historical astronomical data.
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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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