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joi, 18 aprilie 2013

Libration of the Moon and Vlacq and Rosenberger craters by astronomical telescope (video).

Craters Vlacq and Rosenberger (89 km-96 km) are two notable craters on south of the Moon. The two are different. The first mentioned has sharp edges and distinct interior walls, but the second, Rosenberger, is eroded and bombed by many smaller impacts, with blunt edges and no terraced interior walls. Put in comparison, the first is how you would look to a new house, and the other as a patrimonium house. Vlacq, has a mountain located centrally on the floor, near which there are also two small craters.

In the photo below, made ​​in 16.08.2011, observe craters with their names labeled, to know what craters I've discussed in this article. Note that there is a difference between the shape of craters of the photo and the shape of craters in the video : in video, are more oval, which means that the Moon was bending more forward, causing craters to be less visible. This phenomenon is called libration or oscillation.

Moon libration acts as a slow moving back and forth of the Moon as seen from Earth, which allows an observer to see the slight differences of the surface at different times..




Optics: CelestronC8 "-Newtonian telescope, plossl20mm, 2x Barlow
Mount: CG5 (EQ5) motorized
Device: Sony CX-130
Video mode: Full HD progressive 1920x1080
Filter: no
Date: 31/12/2012
Location: Baia Mare, Romania
Processing and editing: Sony Vegas 10



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