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Tsync Tsync
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Posts: 3450
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8 years ago
The first attempt to map the Galaxy via star counts was done by:
A) Edward Barnard with long exposure photos about 1900.
B) William Herschel in the late eighteenth century.
C) Harlow Shapley with the RR Lyrae variables in 1920.
D) Edwin Hubble with the new 100" Mt. Wilson telescope in the 1930s.
E) Galileo in 1612.
Textbook 
Astronomy Today

Astronomy Today


Edition: 8th
Authors:
Read 197 times
3 Replies
Minoring in physics
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RatatouilleRatatouille
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8 years ago
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Tsync Author
wrote...
8 years ago
Exactly what I needed Smiling Face with Open Mouth
Minoring in physics
wrote...
8 years ago
Message back if you need anything
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