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Tsync Tsync
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Posts: 3450
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8 years ago
The ESA's GAIA project will be able to measure parallax and stellar properties of about how many stars?
A) one billion
B) ten thousand
C) one hundred billion
D) one million
E) None; it has a different purpose.
Textbook 
Astronomy Today

Astronomy Today


Edition: 8th
Authors:
Read 669 times
3 Replies
Minoring in physics
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RatatouilleRatatouille
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Posts: 3710
8 years ago
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Tsync Author
wrote...
8 years ago
Wonderful, thanks for your time and effort
Minoring in physics
wrote...
8 years ago
Slight Smile
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