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If given the image in the figure below alone,what further information might be required to determine that the stars are a visual binary system?
Q6: What is the name for the type
Q9: Approximately _ of spiral galaxies are barred.
Q11: Explain how we can use spectroscopic parallax
Q31: Ring material:<br>A) is made mostly of fine
Q37: Heisenberg's uncertainty principle tells us that an
Q38: The spectrum of a galaxy is observed
Q41: Without the ozone layer,life on Earth would
Q52: The presence of shepherd moons keeps the
Q69: What is unique about Venus's rotation?<br>A) Venus
Q71: What does conservation of angular momentum mean?