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发帖数: 1994 | 1 Star Clouds Toward the Southern Crown
Credit & Copyright: David Malin, UK Schmidt Telescope, AAO
Explanation: The flowing trails of dust toward Corona Australis, the constellation of the
Southern Crown, are visible here not because they glow, but because they absorb and reflect.
The dust appears bluer when seen near bright stars because it preferentially reflects blue
light. The densest knots of dust are so thick that no background stars or interior stars can be
seen through them. These |
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