PPT-What is the difference between the geocentric and Heliocentric Model of our solar system?

httpswwwyoutubecomwatchvUtOEnTiAZlU Geocentric Model The Greek astronomer Ptolemy c90168AD used measurements of the sky to create his geocentric model A model of the universe in which the stationary earth lies in the center and all other celestial objects orbit it. 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?. 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. What’s 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.. 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 . 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:. to the Cosmos. Dr. Edward J. Brash. Christopher Newport University. Overview. What is the goal of science?. What methodologies do we use in science?. How has our approach to science changed over the centuries?. 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 . Proposed by Aristarchus of Samos, 280 BC - While the model is not accepted it is preserved and written about extensively by Archimedes.. Previous Models:. Ptolemaic System with Epicycles - Note that the Earth and Sun are "joined" to constrain Mercury and Venus . 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:. Learn planetary characteristics such as number of moons, size, composition, type of atmosphere, gravity, temperature and surface features.. Understand the movement of planetary bodies.. Understand which planetary characteristics are more important than others when it relates to our understanding of other worlds. . In regards to leasing or buying solar panel system, the most suitable choice for you and your energy needs will depend on your financial targets and goals. Let’s take a better look at whether you should buy your solar panel or lease solar for home.

Should I buy or lease solar panel system?
No matter whether you buy your solar panels or lease them, you’ll still get the same clean solar energy powering your house. However, the finances and ownership of your solar power system will change depending on the financial tool you use to purchase it .Let’s now discuss the variations between solar system ownership, leasing, and Purchase Power Agreements (PPAs.) In regards to leasing or buying solar panel system, the most suitable choice for you and your energy needs will depend on your financial targets and goals. Let’s take a better look at whether you should buy your solar panel or lease solar for home.

Should I buy or lease solar panel system?
No matter whether you buy your solar panels or lease them, you’ll still get the same clean solar energy powering your house. However, the finances and ownership of your solar power system will change depending on the financial tool you use to purchase it .Let’s now discuss the variations between solar system ownership, leasing, and Purchase Power Agreements (PPAs.) (Lecture 1). Dale Gary. NJIT. . . Physics Department. September 4, 2018. What is the Solar System?. Some common astronomical terms:. Galaxy. Universe. Solar System. The name “Solar System” has something to do with the Sun (note capitalization).