Absorption nebula

a cloud of interstellar gas and dust that absorbs and thus obscures the light from stars behind it, appearing as a dark patch in front of a bright nebula or in an otherwise bright area of sky.
a type of nebula that is observed by its blocking of radiation from other sources See nebula
absorption nebula
A mass of interstellar gas and dust that absorbs most or all of the light from the stars behind it. Absorption nebulae appear as irregular dark patches and collectively cover about two percent of the sky. Some absorption nebulae, especially the Coalsack near the constellations Centaurus and Southern Cross, are visible to the naked eye. Also called dark cloud, dark nebula. See more at nebula.
dark nebula
See absorption nebula.

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  • Absorptive

    able or tending to ; . Historical Examples Their clay seemed like some other kinds, which have their absorptive powers strengthened by the more they take up. The Red Acorn John McElroy Why does under-draining increase the absorptive power of the soil? The Elements of Agriculture George E. Waring Considering epithelium from the point of […]

  • Absorptivity

    the property of a body that determines the fraction of incident radiation or by the body. noun (physics) a measure of the ability of a material to absorb radiation, equal to the internal absorptance of a homogeneous layer of the material under conditions in which the path of the radiation has unit length and the […]

  • Absotively

    absotively modifier Absolutely: I absotively posilutely want to watch the basketball games

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    to flee; abscond: The old prospector absquatulated with our picks and shovel. Historical Examples To “vamose the ranch” means to clear out, to depart, to cut stick, to absquatulate. Across America James F. Rusling Then when some one laughed she added, “You say ‘absquatulate’ over here, don’t you?” In the High Valley Susan Coolidge Prudence […]

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