Multiple Choice
The instrument astronomers are now using to make the most precise measurements of stellar parallax we have ever had is
A) the 5-meter (Hale) reflector on Mt. Palomar
B) the Very Large Array of radio telescopes
C) the Compton Gamma Ray Observatory
D) the Gaia satellite in space
E) a swimming-pool sized vat of cleaning fluid deep in the shaft of a gold mine
Correct Answer:
Verified
Correct Answer:
Verified
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