Which of the following is a technique used by astronomers in their search for other planetary systems?
A) Observation of the star's rotation only
B) Observation of the Doppler shifts in the star's spectrum only
C) Both (A) and (B)
D) The search for alien signals
Correct Answer:
Verified
Q50: The Venus lacks
A) an atmosphere.
B) a solid
Q51: Which of the following is the largest
Q52: The dominant mass of the solar system
Q53: The planet with the most prominent rings
Q54: At present, the formation of the solar
Q56: Other planetary systems are best detected by
Q57: The planet with the Great Dark Spot
Q58: The flattened, rotating disk of gas and
Q59: The planet with Red Spot Junior is
A)
Q60: Which of the following is the smallest
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