Images of The Moon

Great shot Scott!!    Love the detail!

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This is beautiful! I love the texture of light along the dark line.

Moon, first quarter

Date: 3/31/2020
7.6 days old
Stack of 24 images taken at prime focus. 1/250 sec, ISO 200.
Telescope: 10" f/5.6 Newtonian on equatorial mount.
Camera: Canon T7i (24 Mp, APS-C size sensor)
Image scale: 0.52 arc sec/pixel (the telescope's theoretical resolution limit, depending on who's numbers you use is somewhere around 0.3 to 0.5 arc seconds so this is a good match)
The Moon was 236,740 miles distant at the time so 1 pixel = 0.6 miles on the surface.
The calculation:
tan (angle) = opposite side / adjacent side
opposite side = tan (angle) X adjacent side
miles on surface = tan (0.525 arc sec / 3600) X 236,740 miles = 0.602 miles

This image shows features as small as is typically visible in medium sized amateur telescope in good seeing.
I viewed the Moon visually before I took the shots for this image. Actually the smallest features are easier to see in the image than I could see them visually. This is due primarily to the increased contrast of the image. The larger features are also more readily visible for the same reason.
Typical good seeing in Vermont is 1 to 2 arc seconds.
2 pixels (1 arc sec) = 1.2 miles on the Moon's surface.
3 pixels (1.6 arc sec) = 1.8 miles
4 pixels (2.1 arc sec) = 2.4 miles
The resolution of this image is good enough to detect craters and similar features at least as small as about 2 miles.
Some linear features as small as 1 mile should be visible. Maybe even down to 1/2 mile wide if the contrast with the adjacent the area is high enough.
For those familiar with Fresnel Rile near the Apollo 15 landing site at Hadley Rile and Hadley Crater, some parts of Fresnel Rile that are only about 1/2 mile wide are detectable in this image. The parts of Fresnel Rile that are 1.5 miles wide are easy to see. Hadley Rile and Hadley crater are not visible because they are still in the shadow of the hills to the East of them.

Great shots Paul!   Wonderful detail!

T

Date: 2/21/2021
10 days old
Stack of 20 images taken at prime focus using Registax 6.
1/250 sec @ ISO 200.
Telescope: 10" f/5.6 Newtonian on equatorial mount.
Camera: Canon T7i (24 Mp, APS-C size sensor)
Image scale: 0.52 arc sec/pixel

The is seeing (atmospheric turbulence) was good.

This is what the Moon looked like visually through the 10" f/5.6 telescope.

 Moon_10d_2021-02-21_10inF5.6_prime_T7i_20x1-250th@iso200-BW.jpg