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absorption nebula

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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.

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absorptance
absorptiometry
absorption
absorption band
absorption coefficient
absorption factor
absorption indicator

absorption nebula
absorption spectrum
absorption unit
Absorptive
Absorptiveness
Absorptivity
absquatulate
Absque hoc

Absorption isotherm

Absorption Isotherm Measurement

Absorption Limiting Frequency

Absorption line

Absorption lines

absorption nebula

absorption nebulae

absorption nebulas

Absorption of electromagnetic radiation

Absorption of Light

Absorption peak

Absorption Phase Grating

Absorption refrigeration

Absorption Refrigeration Plant

Absorption refrigerator

Absorption spectra

Absorption spectrometry

Absorption spectroscopy

absorption spectrum

Absorption Systems

absorption tests

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