Astronomers describe the brightness of stars using the brilliance scale.
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Q13: The nadir marks the point of the
Q14: The seasons are caused by Earth's orbit
Q15: Most individual star names come from Latin
Q16: Because Earth's axis of rotation is inclined
Q17: Which is an asterism of Pegasus?
A) Great
Q19: Flux is a measure of the light
Q20: What did the IAU establish in 1928?
A)
Q21: Within the Northern Hemisphere, the vernal equinox
Q22: If two stars have a magnitude difference
Q23: Even though modern astronomers know that stars
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