Astronomy - NGC 3184 - TELESCOPE - EYEPIECE The galaxy's distance from us is about 40 million light years. At 10.4 magnitude - visible from Earth. Here you see some combinations on
Newtonian Reflecting Telescope Designer
What should be the distance between secondary mirror and the eyepiece in Newtonian telescope? - Quora
What's the difference between a Newtonian telescope and a regular telescope? - Quora
Newtonian Reflecting Telescope Designer
The Optics of Telescopes | Let's Talk Science
Newton's Second Reflecting Telescope by Science Photo Library