File:Venus xray 420.jpg
Venus_xray_420.jpg (420 × 370 pixels, file size: 10 KB, MIME type: image/jpeg)
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Summary
[edit]DescriptionVenus xray 420.jpg |
English: This Chandra image, the first X-ray image ever made of Venus, shows a half crescent due to the relative orientation of the Sun, Earth and Venus. The X-rays from Venus are produced by fluorescent radiation from oxygen and other atoms in the atmosphere between 120 and 140 kilometers above the surface of the planet. In contrast, the optical light from Venus is caused by the reflection from clouds 50 to 70 kilometers above the surface.
Solar X-rays bombard the atmosphere of Venus, knock electrons out of the inner parts of atoms, and excite the atoms to a higher energy level. The atoms almost immediately return to their lower energy state with the emission of a fluorescent X-ray. A similar process involving ultraviolet light produces the visible light from fluorescent lamps. |
Date | |
Source | CHANDRA X-ray Observatory CXC Operated for NASA by SAO, url=http://chandra.harvard.edu/photo/2001/venus/ |
Author | NASA/MPE/K.Dennerl et al. |
Permission (Reusing this file) |
Images from NASA usually are free of copyright. |
Image is 2.25 arcmin across. Observation dates: January 10 & 13, 2001. Instrument: LETG.
Licensing
[edit]Public domainPublic domainfalsefalse |
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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current | 19:27, 25 November 2009 | 420 × 370 (10 KB) | Marshallsumter (talk | contribs) | {{Information |Description={{en|1=This Chandra image, the first X-ray image ever made of Venus, shows a half crescent due to the relative orientation of the Sun, Earth and Venus. The X-rays from Venus are produced by fluorescent radiation from oxygen and |
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