Astronomy Midterm Review: Key Terms Celestial equator Asterism Daylight Savings Time Galelio Newton Perihelion Escape velocity Nebula 51 Pegasi Maria Plate tectonics Glaciation Magma Messenger Oort Cloud Ellipse Aurora Meteoroid zenith longitude time zone Kepler perigee aphelion jovian satellites lobate scarps condensation sequence volcanism crust Voyager MER Kuiper Belt parabola ozone meteor prime meridian latitude Brahe Cassini apogee eccentricity planetesimals differentiated objects sinuous rilles accretion disk erosion mantle Viking Huygens Probe Asteroid Belt angular momentum solar wind meteorite Key relationships/equations: Kepler’s Laws of orbits Newton’s laws of motion: inertia, force, action-reaction Newton’s gravitational law Telescope optics: light gathering power, magnification, and resolution Favorite Vacation spots: Grand Canyon, Earth Maat Mons, Venus Caloris Basin, Mercury Olympus Mons, Mars Valles Marineris, Mars Phobos and Deimos, Mars Titan, Saturn Moon Mimas, Saturn moon Charon, Pluto moon Gusev Crater 4 Galilean moons Chixulub crater Mauna Kea, Earth Tyco Crater, Moon Great Red Spot, Jupiter Great Dark Spot, Neptune Mauna Kea Mauna Loa Cassini’s Division Triton, Neptune moon Miranda, Uranus moon Comet Shoemaker-Levy9 Barringer Crater Essay Questions (you will be need to answer one of the follow essay questions – the question is preselected so you need to prepare for all three): Compare and contrast the general characteristics (geology and atmosphere) of the planets Earth and Mars. Using Earth as a laboratory, how may we better understand the surface and atmospheric features of Mars (provide at least three examples). Name and describe two solar system bodies (planet or moon) other than the Earth that could be habitable for life. Defend your answer by explaining how each body supports the three primary requirements for life. Name and describe the two leading theories which explain the evolution of the solar system. How did the solar system come to be so flat? How do the inner planets differ from the gas planets? Why are they so different?