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The size of a star's image in a photo tells you how _______________ the star appears.
Q12: Why can't the Moon always pass through
Q13: In ancient times, constellation boundaries were well
Q17: The term _ refers to a change
Q27: Refracting telescopes use a mirror to gather
Q35: Newtonian physics tells us that Kepler's second
Q51: Which of the following will make the
Q52: The _ is the amount of energy
Q55: The lowest permitted energy level of an
Q56: If the Fed decides to use an
Q66: All telescopes must be operated on site