Multiple Choice
Which of the following properties would NOT be important for a type of astronomical object being considered for use as a "standard candle" for distance estimation?
A) It must be close enough for a parallax measurement.
B) It must be very bright.
C) It must be easily identifiable by some easily observed property.
D) It must have known and reproducible luminosity.
Correct Answer:
Verified
Correct Answer:
Verified
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