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Sunday, 5 June 2011

Playfair and Krusenstern craters

Photographer: Victor Lupu
Optics: Celestron C8-Newtonian telescope, plossl 20mm, 2x Barlow
Mount: CG5 (EQ5)
Device: Sony CX105
Filter: No
Date: 10/02/2011
Location: Baia Mare, Romania
Processing: 10 Sony Vegas, video captures
Craters Apianus G Aliacensis and Werner, and Blanchinus, are the main craters of these photos, by size, located in south-central part of the Moon.
          Playfair (48 km), is a lunar crater located in the rugged highlands of the Moon's south side. It lies along the eastern edge of the satellite crater Apianus G, a formation that is almost twice the diameter of Apianus itself. Playfair is north of Apianus , and south-west of the pair of craters Abenezra-Azophi . Playfair is oval in shape, slightly higher along the east-west rim. The edge is eroded, and small craters are along its south and west. The interior is almost with no features, only a pair of small craters are just east of the midpoint.
The name comes from John Playfair (10.3.1748-20.7.1819), a scottish scientist and mathematician , professor of natural philosophy at Edinburgh University.

          Krusenstern (47 km), is attached to the southeast edge of Apianus G -in photos is attached to the east of Apianus G, and is along and north-east of the larger crater Werner. Krusenstern is a large circular crater and its walls reach a height of 1,600 meters. The interior is almost with no features, marked only by a few small craters. It dates from pre-nectarian era, 4.55 - 3.92 billion years ago.
It has the name of Adam Johann Ritter von Krusenstern (November 19, 1770 - August 24, 1846) which was a german explorer and admiral of the Imperial Russian Navy, who led the first circumnavigation of Earth.


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