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Home Q & A Board Science-Related Homework Help Physics
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symbo symbo
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7 years ago
Harlow Shapley's original estimate of the distance from the Sun to the galactic center was incorrect because it did not take scattering by interstellar dust into account.  This original estimate was
A)   too large because light scattering and absorption by dust made nearer stars look dim —as though they were more distant.
B)   too large because scattering by dust made stars look redder—as though they were highly Doppler shifted and thus more distant.
C)   too small because gas and dust tend to reflect light back into the path of the beam, thus making stars look brighter and nearer.
D)   too large because scattering by dust made stars look redder—as though they were red giants of larger luminosity and thus farther away.
Textbook 
Discovering the Universe

Discovering the Universe


Edition: 7th
Authors:
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discovererdiscoverer
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7 years ago
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symbo Author
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7 years ago
This helped my grade so much Perfect
Jadakiss
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Yesterday
Brilliant ツ
TheMoffattMan
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2 hours ago
I appreciate what you did here, answered it right Smiling Face with Open Mouth
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