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staedtler staedtler
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7 years ago
An astronomer studying a distant cluster of galaxies finds that several of the galaxies are spiral-shaped, with a large nuclear region and tightly wound arms. How should the astronomer classify these galaxies?
   A)  Sb    B)  SBb    C)  Sa    D)  Sc
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Discovering the Universe

Discovering the Universe


Edition: 7th
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papachulopapachulo
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staedtler Author
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7 years ago
I really appreciate your help!
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