File:AS16-131-20100.png
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Summary
[edit]DescriptionAS16-131-20100.png |
English: Earth in ultraviolet using Kodak IIA-0 Spectroscopic film and Zeiss UV Sonnar 105 mm lens. This photo is used in Figure 17-5 of the Apollo 16 Preliminary Science Report (NASA SP-315), which has the following caption: The Earth at 460 nm (4600 Å): f/8, 1/500: TLC, Distance: ~33 000 n. mi., GET: ~08:00. The Report discusses the figure as follows: A comparison of the appearance of the Earth at effective wavelengths of 320 nm (3200 Å) and 460 nm (4600 Å) is given in figures 17-4 and 17-5, respectively. At first glance, very little difference is noted at these two wavelengths. The area shown in the figures is the Pacific Ocean, with Baja California just disappearing at the terminator. Thus, the detail seen is primarily cloud patterns against the ocean background. Close inspection of second generation positives reveals that low-altitude clouds and air-sea boundaries have almost entirely disappeared from the image obtained at the shorter wavelength (fig. 17-4). The diffusely reflected image of the Sun present on the 460-nm (4600 Å) picture (fig. 17-5) is also missing from figure 17-4. These results are entirely consistent with predictions from the elementary scattering theory, which suggests that a marked increase in the brightness of a planet's atmosphere will occur with decreasing wavelength. Note: Figure 17-4 is AS16-131-20106. |
Date | |
Source | March to the Moon, Apollo 16, Hasselblad 500EL 70 mm, Magazine 131 |
Author | NASA |
This image or video was catalogued by one of the centers of the United States National Aeronautics and Space Administration (NASA) under Photo ID: AS16-131-20100. This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing. Other languages:
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Licensing
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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 | Thumbnail | Dimensions | User | Comment | |
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current | 03:55, 8 February 2022 | 3,586 × 3,034 (16.33 MB) | Jstuby (talk | contribs) | Uploaded a work by NASA from March to the Moon, Apollo 16, [http://tothemoon.ser.asu.edu/gallery/Apollo/16/Hasselblad%20500EL%2070%20mm Hasselblad 500EL 70 mm], Magazine 131 with UploadWizard |
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Horizontal resolution | 2,019.5 dpc |
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Vertical resolution | 2,019.66 dpc |
File change date and time | 03:02, 4 January 2019 |