Earth's dust ring around Sun

Earth's dust ring around Sun

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This image is part of the feature Earth's Dust Ring

Credit: S. JAYARAMAN & S.F. DERMOTT, UNIVERSITY OF FLORIDA /SCIENCE PHOTO LIBRARY

Caption: Earth's dust ring. Computer simulation of a ring of asteroidal dust orbiting the Sun with the Earth. The Sun and Earth are shown respectively as yellow and green spots. The colours in the ring represent dust density, from blue (lowest) to white (highest). It is thought that the dust came from the zodiacal cloud which envelops the inner Solar System, and has become locked in a gravitational resonance with the Earth. The dust ring orbits with the Earth, but forms a peak density in the Earth's 'wake' (large white area, right). This model may explain the asymmetry of the zodiacal cloud observed by the IRAS satellite.

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Keywords: asteroidal dust ring, astronomy, cosmology, dust, dust ring, dust ring in orbit, earth, graphic, gravitational, gravitational resonance, planet, planetary, planets, resonance, science, solar system, zodiacal light

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