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LC Authorities & Vocabularies
H II regions (Astrophysics)
LC control no.
sh 85058134
Topical heading
H II regions (Astrophysics)
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Variant(s)
H 2 regions (Astrophysics)
H regions (Astrophysics)
See also
Interstellar hydrogen
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LC Authorities
Ionized gases
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Nebulae
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