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File:Proclus crater hrp147.jpg

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摘要

描述
English: Oblique view of part of part of Proclus, on the moon. This is Figure 147 of Apollo Over the Moon (NASA SP-362, 1978), which has the following caption:
This oblique view looks south over the 26-km-diameter crater Proclus in the highlands at the western edge of Mare Crisium. Proclus is a young rayed crater that is distinctive because of the marked asymmetry of its ray system-a characteristic visible even in Earth-based telescopic views. The excluded zone is along the southwest edge (top of photograph) but is visible in this moderate Sun photo only as a slight albedo change. Laboratory experiments suggest that a low trajectory angle might account for the asymmetry. A number of large blocks can be seen at the edge of the crater rim. The exceptionally large block (arrow) is about 200 m wide and, judging from the length of the shadow it casts, nearly as high. As in several other craters shown in this chapter, a darker layer is present in the upper part of the crater wall.-J.W.H.
日期 original 1972, published 1978
來源

Transferred from en.wikipedia to Commons. (Original text: Apollo 17 Panoramic camera image AS17-P-2265, cropped to show Proclus crater.

Immediate source: NASA History Program Office, Apollo Over the Moon, A view from orbit (NASA SP-362, 1978)
Figure 146 hrp147
)
作者 NASA

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Public domain 本作品由NASA創作,屬於公有領域。根據NASA的版權政策:“NASA的創作除非另有聲明否則不受版權保護。”(參見:Template:PD-USGov/zhNASA版權政策JPL圖像使用政策
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The original description page was here. All following user names refer to en.wikipedia.
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2014-02-18 02:04 800×1675× (204805 bytes) Jstuby {{Information |Description = Oblique view of part of part of [[Proclus (crater)]], on the moon. This is Figure 147 of ''Apollo Over the Moon'' (NASA SP-362, 1978), which has the following caption:<br>This oblique view looks south over the 26-km-diamet...

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