absorption nebula

(redirected from absorption nebulae)
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Related to absorption nebulae: Reflection nebula, emission nebula, Molecular clouds

absorption nebula

See dark nebula.
Collins Dictionary of Astronomy © Market House Books Ltd, 2006

absorption nebula

[əb′sȯrp·shən ′neb·yə·lə]
(astronomy)
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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Are they evidence of dust associated with M13 itself, or perhaps semitransparent absorption nebulae in the foreground far in front of the bright globe of stars?
John Casino's 36-inch Dobsonian with an O III filter revealed the linear absorption nebulae in M17 just as clearly as a photograph.