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.
Fecha
Fuente
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
Material del Telescopio espacial Hubble puede tener copyright si no proviene explícitamente del Space Telescope Science Institute. [1]
Todo el material creado por la sonda espacial SOHO está protegido por copyright y requiere permiso para ser utilizado con fines comerciales o no educativos. [2]
{{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),...
Leyendas
Añade una explicación corta acerca de lo que representa este archivo
Este archivo contiene información adicional, probablemente añadida por la cámara digital o el escáner usado para crearlo o digitalizarlo.
Si el archivo ha sido modificado desde su estado original, pueden haberse perdido algunos detalles.
Comentario de archivo JPEG
This is a virtual print of Apollo Photograph AS17-P-2773 generated by the School of Earth and Space Exploration, Arizona State University. Usage of this image is governed by the Acceptable Use Policy, which can be accessed at http://apollo.sese.asu.edu/ABOUT_SCANS/index.html