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Uranus's
Rings
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Rings
discovered by accident with stellar occultation in 1977
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occultation
observed to measure diameter of Uranus
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Voyager
2 flyby allowed for measurement of composition
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Rings
composed of low reflectivity particles about 1 m in diameter
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as
reflective as coal
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What
are Saturn's rings composed of?
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Does
Jupiter have rings?
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Why
are Uranus's (and Neptune's) rings so dark?
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not
sure
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rings
are probably coated with methane ice
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methane
is CH4
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methane
ice is shiny
-
but
methane ice bombarded by electrons forms carbon compounds
-
carbon
compounds often black
Uranus's
rings backlit
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