| Abstract: | The paper presents method and results for the determination of the depths of more than 1900 small lunar craters from measures of shadows on the long-focus pictures obtained by Lunar Orbiter IV. The method for converting the measured shadow length into the true length in nature of the shadow hypotenuse is new and is applicable to other planetary bodies provided comparable spacecraft ephemerides are available. The measures were made with a simple surveyor‘s plotting scale on the standard Orbiter IV photographic enlargements. The results indicate that the smaller lunar (D < 30 km) craters are appreciably deeper than is indicated by earlier work using imagery obtained at terrestrial observatories. ?? 1974. |
| Genre: | Article |
| ProdID: | 70010971 |
| Citation Author: | Arthur, D. W. G. |
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| Citation End Page: | 133 |
| Citation Issue: | 1 |
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| Citation Language: | English |
| Citation Larger Work Title: | Icarus |
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| Citation Number Of Pages: | 18 |
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| Citation Search Results Text: | Lunar crater depths from orbiter IV long-focus photographs; 1974; Article; Journal; Icarus; Arthur, D. W. G. |
| Citation Start Page: | 116 |
| Citation Volume: | 23 |
| Citation Year: | 1974 |
| Type: | citation/reference |
| Text: | Lunar crater depths from orbiter IV long-focus photographs; 1974; Article; Journal; Icarus; Arthur, D. W. G. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Tue, 1 Jan 1974 00:00 -0600 |
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