>>2840946
More like inches for that part.
But the size really doesn't matter that much.
Once you can do simple tasks like find the clitoris, you're already in the top 10%.
Regarding telescopes. For Astronomy.
It's not that much about the ability to zoom in, it's more how much light you can catch.
Also, due to how our eyes are built, with more light, above a certain threshold, comes color.
Otherwise, as you probably know, human low-light vision is exclusively black and white.
With the optical 8incher, if pointed at the well known Orion Nebula, I would, albeit faint, see a bunch of colors. Fields of them, some more red, or blue, or green.
So, a mild success I would say.
Now, if you take the hobby seriously, you turn all the lights in your home of 30 minutes before the action, the telescope has been outside for some hours to acclimate, you set your personal digital device to a skymap and red-only light.
Red light does not ruin night vision.
Then you may sit outside for hours, without moving much.
So you'll also learn which pieces of your Garderobe are good at keeping you warm.
Have fun.