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Study Resources (Astronomy)

Question Which of the following discoveries helped to show that the heliocentric model was correct. (Give ALL correct answers, i.e., B, AC, BCD...) Ptolemy's use of epicycles to explain retrograde motion. Galileo's discovery of satellites orbiting Jupiter. Aristotle did not observe stellar parallax. Kepler's discovery that the planets orbits are ellipses..
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Question Which of the following can you observe about Venus with the naked eye? Select all that apply. A. Venus sometimes shines brightly in the eastern sky shortly before dawn B. When Venus is brightest, it is visible all night long In Ptolemy’s Earth-centered model, when would Venus appear directly behind the Sun as.
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Question Which of the following statements correctly describes the relationship between stars and constellations? a. Only stars close to the ecliptic (the Earth's orbital plane) are located in constellations. b. Every star is located in a constellation. c. Only the brighter stars are in constellations d. Only those stars that were.
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Question Suppose that Jupiter had a fifth Galilean satellite similar in size to our moon that orbited at a distance greater than that of Callisto. Use the knowledge that you have gained in this chapter to explain what you would predict for both the composition and the surface features of that.
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Question Which of the following is impossible? Select one: a. A lunar eclipse roughly two weeks after a solar eclipse. b. A solar eclipse roughly two weeks after a lunar eclipse. c. A lunar eclipse roughly six months after a solar eclipse. d. A solar eclipse roughly six months after a lunar eclipse. e. Any kind of.
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Question Which observation provides the most detailed information about Universe content and expansion? a. Fluctuations in the cosmic microwave background. b. Hubble-type diagrams of speed vs. distance. c. The orbital speeds of galaxies in galaxy clusters. d. Direct observation. What is a galaxy? a. An assembly of several hundred billion stars. b. The outer reaches of our Solar.
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Question What is the major difference between an elliptical galaxy and a spiral galaxy? A spiral galaxy has a spherical halo. There are no dwarf spiral galaxies, but there are dwarf ellipticals. An elliptical galaxy lacks a disk component. A spiral galaxy contains mostly younger stars. Elliptical galaxies are not as.
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Question This question arises out of this question on Quora - Apollo 11: 1969 Moon Landing: Did Neil Armstrong really land on the moon? I'm convinced with most of the explanations provided in the first answer to that question. None of these conspiracy theories have bothered me. However one thing that confuses.
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