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AIM: Define sun, orbit, planet, moon, solar system. Explain the difference between the geocentric vs. heliocentric model and how to plot a latitude longitude coordinate on a geographic map? Solar System, Sun, Latitude Longitude OBJ: Given notes and activity sheet SWBAT define sun, orbit, planet, moon, solar system, explain the difference between the geocentric vs. heliocentric model and how to plot a latitude longitude coordinate on a geographic map with 70% accuracy. DN: HW check- Moon Phases, Eclipses, Tides Activity Sheet. ACT: Introduction to the solar system, geocentric vs. heliocentric model, plotting latitude longitude (notes). Text, read p. 73-77, 79. Complete Observing the Solar System, p. 176 HW: Complete Observing the Solar System, p. 176 Complete ESPET quiz (scantron due tomorrow); Work on Astronomy Activity Sheets; Astronomy Exam, Dec 19 TERMS TO KNOW Sun: a star at the center of a solar system Orbit: the path of one object as it revolves around another object. Planet: a spherical object that orbits a star. A planet’s orbit is an ellipse (oval, elongated to near circular in shape). Moon: object(s) that orbit a planet. Solar System: one star and all objects that orbit that star. [Note: our solar system consists of the sun, nine planets, their moons, and comets/asteroids that revolve around the sun]. Models of the Solar System Geocentric (earth-centered): earth is at the center and the stars and planets revolve around Earth. Heliocentric (sun-centered): sun is at the center with the Earth and planets revolving around the Sun. Galileo’s telescope evidence supported this model of the solar system. The Sun The Sun’s (any star’s) energy is powered by Nuclear Fusion: the process where hydrogen atoms join together under the influence of gravity to form helium and huge amounts of energy (radiation) is released into space. Latitude(N,S) & Longitude(E,W) Reading A Lat-Long Map Prime Meridian North Equator South Latitude: ________ 60º N Longitude: ________ 40º E Chicago: Lat: ____, Long: ____ Paris: Lat: ____, Long: ____ New Orleans: Lat: ____, Long: ____ Baghdad: Lat: ____, Long: ____ Buenos Aires: Lat: ____, Long: ____ Sydney: Lat: ____, Long: ____