Diameter of Charles Messier's Telescope

[AstroCody]

What was the diameter of the telescope that Charles Messier used to make the Messier Catalog?

 

[Borg]

Messier telescope was a 100 mm (four inch) refracting telescope.

 

[AstroCody]

Thanks for the answer.

 

[Borg]

You're welcome. It was pretty easy to google.

 

[AstroCody]

I would imagine. I tried finding it before but didn't search for the right thing.

 

[Borg]

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.

 

[glappkaeft]

SEDS has a page with information from a 1807 book listing the telescopes Messier used between 1765-69.

http://messier.seds.org/xtra/history/m-scopes.html