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College Small Bodies and Dwarf Planets
Long period comets have orbits                                                           .
  1. the same as the orbits of short period comets
  2. always in the plane of the planets
  3. that are circular
  4. randomly oriented with respect to the plane of the planets
College Small Bodies and Dwarf Planets
Imagine a new object is discovered in the solar system. It is orbiting the Sun at a distance of 2.8 AU. The object is known to be of sufficient mass to be spherical in shape. Would this object be classified as a planet or a dwarf planet?
  1. Planet, it meets all three criteria necessary to be classified as a planet
  2. Planet, any object that is spherical and is in orbit around the Sun is a planet.
  3. Dwarf Planet, it meets the first two criteria for a planet, but it orbits in the asteroid belt, so it does not meet the third criteria.
  4. Dwarf Planet, it meets the first two criteria for a planet, but it orbits in the Kuiper Belt, so it does not meet the third criteria.
College Astronomy
What is the average number of days to complete a lunar cycle?
  1. 27.5 days
  2. 28.5 days
  3. 29.5 days
  4. 29.5 days
  5. 30.5 days
  6. 30.5 days
College Space Exploration
Which of these was NOT seen telescopically by Galileo?
  1. Sunspots
  2. Venus' phase cycle
  3. Four moons around Jupiter
  4. Stellar parallax
  5. Craters and mare on the Moon
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