coma (cometary)
Coma (cometary) refers to the glowing, nebulous cloud of gas and dust that envelops the nucleus of a comet as it approaches the Sun, resulting from the heating and vaporization of the comet's icy surface.
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Coma (cometary) refers to the glowing, nebulous cloud of gas and dust that envelops the nucleus of a comet as it approaches the Sun, resulting from the heating and vaporization of the comet's icy surface.
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