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Saturday, 10 December 2011

Demonax crater. Pictures of Moon through the telescope

Photographer: Victor Lupu
Optics: Celestron C8-Newtonian telescope, plossl 20mm, 2x Barlow
Mount: CG5 (EQ5)
Device: Sony CX105 to 8x optical zoom
Total Magnification: 800x
Filter: no
Date: 08/16/2011
Location: Baia Mare, Romania
Processing: video captures, FastStone Image Viewer

Demonax (114 km), is a large crater with a depth of 3.9 km, located near the lunar South Pole, and has a relatively comparable size with the nearby crater Boussingault (131 km), which is partially visible in the images above.
 In the photos in this article, the floor of Demonax crater is not visible because the Moon inclination in 16 August did not allow this. This is also because the Sun was on a small angle.
We need to know that the Moon does not have its own fixed axis, but is leaning forward and backward within a month, making craters in some periods to not always be seen the same.This phenomenon is called wobble.
 For example, these craters are on the south of the Moon, and we can not see the floor of Demonax (as in the old photo below of 10 February), this means that the northern Moon craters are more visible, even more craters on Moon's North terminal. This means that in August 16th, the Moon was inclined forward.
Other craters of these photos are Boguslawsky and Manzinus.
                      Picture of the craters on the Moon's south pole, made on 10 February 2011.


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