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File:Dobrovolskiy Shirakatsi craters hrp148b.jpg

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English: The craters Shirakatsi (left) and Dobrovol'skiy (right), on the far side of the moon. This is the second photo of Figure 148 of Apollo Over the Moon (NASA SP-362, 1978), which has the following caption (edited for clarity because the two craters were not formally named at the time of publication):
This pair of overlapping medium-sized craters illustrates some of the criteria used to determine relative ages. Material ejected from the larger polygonal crater (Shirakatsi) on the left partially fills the smaller crater on the right (Dobrovol'skiy); thus, the crater on the left is younger. Furthermore, the wall of the large crater is complete, whereas the west wall of the smaller crater is absent, obviously having been destroyed by the larger crater. Even if the two craters did not overlap, the sharp rim, terraced walls, and prominent central peak of the larger crater clearly identify it as the younger of the two. The frames used in the stereogram (p148a) were selected to show exaggerated relief, a technique very helpful to photointerpreters in determining shapes and relative elevations of surface features. The two craters are located in the rugged terrain of the far-side highlands approximately 250 km north of the prominent crater Tsiolkovsky. The photograph below (hrp148b) is an oblique view of the same pair of craters. It is included, not because it is a more dramatic view, but because it shows from another perspective that one crater clearly is superposed on the other. -M.C.M.
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Apollo 17 Panoramic camera image AS17-P-2773, cropped to show Dobrovolskiy and Shirakatsi craters.

Immediate source: NASA History Program Office, Apollo Over the Moon, A view from orbit (NASA SP-362, 1978)
Figure 148 hrp148b
Author NASA

Licensing

Public domain This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
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Date/Time Dimensions User Comment
2014-03-03 17:04 860×742× (119461 bytes) Jstuby {{Information |Description = The craters [[Shirakatsi (crater)|Shirakatsi]] (left) and [[Dobrovolskiy (crater)|Dobrovolskiy]] (right), on the far side of the moon. This is the second photo of Figure 148 of ''Apollo Over the Moon'' (NASA SP-362, 1978),...

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Date/TimeThumbnailDimensionsUserComment
current18:51, 29 December 2017Thumbnail for version as of 18:51, 29 December 20171,380 × 1,150 (426 KB)Jstubyhigher resolution, better quality, from same source image at ASU: [http://wms.lroc.asu.edu/apollo/view?camera=P&image_name=AS17-P-2773 AS17-P-2773]
13:45, 22 August 2015Thumbnail for version as of 13:45, 22 August 2015860 × 742 (117 KB)InnotataTransferred from en.wikipedia

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