Tuesday, June 04, 2013
Unknown
In the far northern region of the Moon, we see only two notable craters, Philolaus and Anaxagoras. First, it is almost completely in shadow, but the inner wall of the west is fully illuminated by the Sun.
Philolaus (71 km), is partially overlapped over two craters, much larger in size, one of which is to the east and named Philolaus D (91 km). Maybe it should be called Philolaus ,and Philolaus, which is smaller, to be a satellite of this large crater. But I am not the one to decide. Maybe this is the criteria for naming the craters. Probably is considered as the main crater the newest one.
A second crater overlapping Philolaus, lies west of it. To locate it, observe a second crater edge surrounding the Philolaus, creating the image of a double edge. This, however, has no name.
South-east of Philolaus, there is a crater named Philolaus G (95 km). It does not have the complete edge, lacking the west wall, appearing open to the west, like a horseshoe.
Notice Anaxagoras crater east of Philolaus, and note the central mountains within it.
Video images were processed in Registax software, video of which were used at each picture in the sequence from top to bottom, 12, 27 and 28 frames, setting to select those with 95 percent quality.
Age of the Moon: 9 days
Phase: 75% (0% = New, 100% = Full)
Distance: 392.049 km
Optics: Celestron C8-Newtonian telescope, 20mm Plossl, 2x Barlow
Mount: CG5 (EQ5)
Camera: Sony CX130
Filter: no
Date: 03/03/2012
Location: Baia Mare, Romania
Processing: Registax, FastStone Image Viewer
The photo above was made on 13 February 2011.
Posted in: Craters-Goldschmidt and Anaxagoras,Craters-Philolaus,Gallery-Registax
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