to calculate the dashed orbits from the stellar positions, astronomers had to assume that __________.

to calculate the dashed orbits from the stellar positions, astronomers had to assume that __________.، To calculate the intermittent orbits from stellar positions, astronomers had to assume that __________. If they observe for several more years, the dots will follow the ovals. The fastest stars are the ones that are moving away from each other. Farther points represent faster movement, because all points represent one year apart.

to calculate the dashed orbits from the stellar positions, astronomers had to assume that __________.

To calculate the intermittent orbits from stellar positions, astronomers had to assume that __________. If they observe for several more years, the points will track with ellipses.

To calculate the intermittent orbits from stellar positions, astronomers had to assume that __________. a) The stars are all main sequence stars. b) If they observe for several more years, the points will track with ellipses. c) If they observe for several more years, the points will track parabola.

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