'Cepheid variable' diaporamas de présentation

Big Bang, Black Holes, No Math ASTR/PHYS 109 Dr. David Toback Lectures 14 & 15

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Astronomy 2 Overview of the Universe Spring 2007 11. Lectures on External Galaxies. Joe Miller

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Chapter 30 Review

Chapter 30 Review. Galaxies and the Universe. What characteristic of radio waves makes them useful for determining the shape of a galaxy?. their long wavelength their high frequency their easy visibility their variable energy.

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History of Cosmology

History of Cosmology. Newton to The Big Bang. What is science?. a) Finding the truth. b) A set of facts. c) Performing experiments and observations. d) All of the above. What is the difference between scientific laws and theories?. Laws have been proven. Theories have not been proven.

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The Milky Way Galaxy

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The Milky Way Galaxy

The Milky Way Galaxy. Structure of the galaxy. The Milky Way is a spiral galaxy The galactic center is the thickest part. Around a dozen arms spin around the center. The Solar System is on the Orion Arm. Dimensions of the Milky Way.

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P 7 20 Questions

P 7 20 Questions. Traffic Light Quiz. Rules. Everyone should reveal their answer at the same time Count down: 3, 2, 1, show!. 1. The parallax angle of a star is. twice the angle moved against the background of distant stars in 6 months

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Chapter 19 By reading this chapter, you will learn

19-1 How a main-sequence star changes as it converts hydrogen to helium 19-2 What happens to a star when it runs out of hydrogen fuel 19-3 How aging stars can initiate a second stage of thermonuclear fusion

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A Message from the Cepheids?

ET: So Where Is He? Is there alien life in the universe? What are we looking for? How to find them (do they want to be found)? Why should we care about aliens?. A Message from the Cepheids?. John Learned Physics and Astronomy, UH Manoa

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A Message from the Cepheids?

ET: So Where Is He? Is there alien life in the universe? What are we looking for? How to find them (do they want to be found)? Why should we care about aliens?. A Message from the Cepheids?. John Learned Physics and Astronomy, UH Manoa

157 views • 14 slides

Cepheid Variables

Cepheid Variables. Hydrostatic equilibrium . When a stars thermo nuclear fusion equals the pull of gravity the star is in equilibrium Like our sun. Pulsating variable stars .

477 views • 10 slides