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Video by telescope Hercules Atlas and Posidonius craters
http://lupuvictor.blogspot.com The video below begins with crater Posidonius. A 203 mm telescope will reveal the complex nature of the floor of Posidonius. The clear prominent bowl-shaped crater Posidonius A (12 km), is west of the center. To the east, there are a number of rivulets (rilles), called Rima Posidonius, the most prominent of which is the 50 km one, that passes over the center of the floor, and perpendiculary cut over itself to a smaller rille.
Atlas (87 km) and Hercules (67 km) are prominent craters and at a distance of 30 km between each other, located on the northern border of Lacus Somniorum. Atlas has a sharp edge and a wide inner wall, showing terraces. Through a 203 mm reflector telescope you can see the floor with five narrow rilles. Under high light of the sun, Atlas’s edge is clearly discernible, and the two well-known, well-defined circular dark spots, each about 10 km in diameter, can be seen inside. A ray of light, coming from the crater Thales passes between these two dark spots.
Joined north, is an ancient crater, more eroded which is called Hercules which also has a sharp edge and is terraced inside. It shows a prominent crater, 12 km in diameter, south of its center and a small isolated hill located centrally, occupying the flat floor, darker in north.
The two craters are a magnificent landscape, especially when are at the terminator (between shadow and light).
Video images are upside down, as seen through the telescope.
Video: Victor Lupu
Optics: CelestronC8 “-Newtonian telescope, plossl20mm, 2x Barlow
Mount: CG5 (EQ5)
Device: Sony CX-130
Video mode: Full HD progressive 1920×1080
Filter: no
Date: 29/04/2012
Location: Baia Mare, Romania
Processing and editing: Sony Vegas 10
2012-08-28 07:00:52
Source: http://lupuvictor.blogspot.com/2012/08/video-by-telescope-hercules-atlas-and.html
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