PPT-Unit 2 – The Moon and the Planets

ASTR 101 Prof Dave Hanes The Moon s Baleful Influence Crime rates homicides birth rates acts of lunacy t raffic a ccidents etc http skepdiccomfullmoonhtml. The . Pluto. Files. By Neil Degrasse Tyson. February 18, 1930. Pluto was discovered by Clyde W. Tombaugh, an amateur astronomer from Illinois at Arizona’s Lowell Observatory.. He considered naming the planet Percival, after Percival Lowell.. Formation of the Solar System. Formation of the Solar System. Scientists claim that 4.5 billion years ago there was just a featureless cloud of . gas..mostly. hydrogen and some helium with a little carbon and iron. Exam on Monday. I’ll have a Mock exam to work on Friday. Solar Eclipse. Freds_excellent_eclipse.mpg. Solar Eclipses . Umbra. – region of total shadow. Penumbra. – region of partial shadow. Totality lasts only a few minutes!. ASTR 101. Prof. Dave Hanes. The . Moon. ’. s . Baleful Influence . (?. ). Crime . rates, . homicides, . birth rates, acts of. ‘. lunacy,. ’. t. raffic a. ccidents. , etc…. http. ://skepdic.com/fullmoon.html. Earth, Moon, and Sun. Planets and Our. Solar System. Stars, Galaxies, and the Universe. Random. Reasons. for the Seasons. 100. 100. 100. 100. 100. 100 . 200. 200. 200. 200. 200. 200. 300. 300. 300. Earth and Sun Relationship. Earth completes one revolution around the sun every 365 ¼ days. . Revolution – the time it takes for the Earth to complete 1 orbit around the sun.. What is Rotation?. Rotation – the Earth rotates around its axis once every 24 hours.. SC.5.E.5.1, SC.5.E.5.2, SC.5.E.5.3, SC.4.E.5.4 . Department of Science. Big Idea 5: Earth in Space and Time Benchmarks. SC.5.E.5.1. Recognize that a galaxy consists of gas, dust, and many stars, including any objects orbiting the stars. Identify our home galaxy as the Milky Way. AA .  . Recognize that the . Sun and stars emit the light by which they are seen and that most other bodies in space, including Earth’s Moon, planets and their moons, comets and asteroids are seen by reflected light.. Place . agenda in the top corner of your desk.. Begin answering the study guide with the information you know in PENCIL.. 1. When the question pops up you will only have a short amount of time to write.. 2015-2016. Earth’s movement is constant!. Earth’s orbit. Sun is at the center. Orbit: movement of an object around another. ex: Earth orbits the Sun.. Elliptical: oval shaped. Revolution: 1 full orbit of Earth around Sun. . The four planets closest to the sun are known as the inner planets. Mercury, Venus, Earth, and Mars. Mercury. This picture of Mercury was made by joining many smaller photos taken by . Mariner 10. . No photos were taken of the area that looks smooth. . 2. you should be able to:. Understand scaling: solar system, galaxy, universe. Understand that we are a part of a spiral galaxy known as the Milky Way. Know the approximate age of the universe and solar system. SOLAR SYSTEM: all of the planets, 
moons, comets, and rocks that travel 
around the Sun. GALAXY: giant collection of gas, dust, 
and trillions of stars. Milky Way: our galaxy. Planet Sizes. PLANETS. Mars. Venus. Earth. Jupiter. Mercury. Saturn. Uranus. Neptune. Our Home Planet. Earth, our home planet, is the third planet from the Sun and the fifth largest planet in the Solar System. Earth is 150 million kilometres from the Sun..