PPT-GEOCENTRIC

vs HELIOCENTRIC Whats in Our Solar System Our Solar System consists of a central star the Sun the nine planets orbiting the sun moons asteroids comets meteors interplanetary gas dust and all the space in between them. In 150 A.D., Claudius Ptolemy applied a geometric model to the heavens. Spheres and perfect circles formed the basis of his hypothesis of the planetary movements in a geocentric cosmology. In the 5(325721*(2&(175,&$1'*(2'(7,&'$780639$1,&(. 7(&+1,&$/5(3257 REPORT ON GEOCENTRIC AND GEODETIC DATUMS P. Vanltek Department of Surveying Engineering University of New Astronomy: The original Science. Imagine that it’s 5,000 years ago, and you are alive….. Clocks and modern calendars have not yet been invented…. How would you know what time it is????. How would you know that your birthday is just a week away???. Motions of the Planets. The ancient astronomers believed that the Universe was made up of spheres (orbs). The sphere that contained all of the objects seen in space was the Celestial Sphere. The sphere rotated around the earth making it appear as if all celestial objects were revolving around the earth. In this image you can see the stars and the Sun look as if they’re attached to the sphere Where is the person in the image trying to get to?. Technical Manual Version 2.3 (1) (Version 2.3, Amendment 1) ISBN 0-9579951-0-5 Geocentric Datum of Australia Technical Manual au/gda/gdatm/gdav2.3.pdf III CHAPTER 5 CONVERSION BETWEEN ELLIPSOI Problem #1: Planets seemed bright and close at times but dim and far away at other times. Ptolemy’s Answer: Eccentric circles. . This model offended the ancients because . . the earth was not the center anymore. vs.. HELIOCENTRIC. Age of Enlightenment. A . cultural movement of intellectuals in the 17th and 18th centuries, which began first in Europe and later in the American colonies. Its purpose was to reform the way of thinking using reason, challenge related to tradition and faith, and advance knowledge through the scientific method. It promoted scientific thoughts, skepticism and intellectual interchange and completely opposed any kind of superstition. How do we know the Earth goes around the Sun?. Recap/Announcements. Canvas assignment due today . Moon motions in the sky due . Campus observatory. Midterm 9/27. Appearance . and motions of objects in the sky:. Prof Wladimir . Lyra. Live Oak, 1119-G. Office Hours: Tue 2:30pm-3:30pm. Class hours: Tue/Thu 3:30pm-4:15pm. Raphael’s . School of Athens. Aristotle. Aether. The celestial sphere. Evidence for . Geocentrism. Answer. Heliocentric-sun centred. Geocentric-earth cantered.. 2. ) Which is the accepted theory?. a) Heliocentric . b) Geocentric.. Answer. a) Heliocentric-sun centred. 3. ) Galileo proved the heliocentric model to be true by observing . Define Renaissance:. The Renaissance. Reasons for a decline . in feudalism. Reasons for the rise of the Renaissance. Painting and Sculpture. Middle Ages. R. enaissance. Middle Ages. Renaissance. Architecture. Origins of Astronomy. 1. Why did Copernicus hesitate to consider alternatives to the Ptolemaic Universe? . It contradicted Christian . Theology at the time. 2. What was the most controversial issue about eh nature of the universe?. How would you explain an image like this in ancient times?. Making a Foldable!. Make a 4 flap foldable!. Label the 4 flaps:. Aristotle. Ptolemy. Copernicus. Galileo. Inside, note as we go . through scientists:. Mission Concept Study. Robin Stebbins, Study Scientist. Ninth LISA Symposium. Paris, 22 May 2012. Outline. Goals. Elements of the study. Context of the study. Responses to the Request-For-Information (RFI).