A light-year equals the
A) time it takes light to travel through space in 1 Earth year.
B) distance light travels through space in 1 Earth year in a vacuum.
C) distance light travels through space in 1 Earth month.
D) distance light travels through space in 1 Earth day in a vacuum.
Correct Answer:
Verified
Q18: The North Star, referred to as _,
Q19: In relationship to Earth's orbit, the ecliptic
Q20: With _ height above Earth's suface, the
Q21: At polar latitudes during the _ solstice,
Q22: Most people can see a total lunar
Q24: Toward the blue end of the spectrum,
Q25: Identify the two solstice and two equinox
Q26: Astronomers use a spectrometer to analyze
A)a star's
Q27: A simple example of the Doppler effect
Q28: An astronomical unit represents the average distance
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