PPT-Astro 4: Stars, Galaxies, and the Universe

Astro 4 Stars Galaxies and the Universe Rick Nolthenius Call me Rick Office 706a 4796506 email rinolthecabrilloedu visit my extremely excellent website Textbook The Cosmic Perspective Stars Galaxies Cosmology Bennett Donahue Schneider and. The Milky Way Galaxy. When you look into the hazy band of light across the sky, you are actually looking at our galaxy from the inside. While an awesome sight, you can only truly begin to see it if you get away from city lights on a moonless night. . Solar Systems. Galaxies. The Andromeda Galaxy. Aliens. The Drake Equation. Alien Inquiry. Solar System .  big. Galaxies  Bigger. Universe  BIGGEST. Universe Size Comparison. A Solar System is made up of all the . Lecture 3; April . 11 2013. Previously.. On Astro-2. The universe is much larger than the Milky Way (Gpc vs kpc). There are billion of galaxies, the Milky Way is average Joe galaxy. Most galaxies can be classified based on their appearance as . Physicist and communicator at CERN. The dark side of the Universe. Shrimp Nebula. ©. VLT, European Space Observatory. Convince you all of the existence of dark matter. Review how one can catch dark matter. Ms. Cordaro . SMHS . Earth Science. Review/Warm up – Write this in your journal. (Do not fill in the blanks yet!!). A light year = How far _ _ _ _ _ travels in _ _ _ year.. The electromagnetic spectrum is made up of different size _ _ _ _ _ that produce _ _ _ _ _ _ in the form of radiation.. Extraterrestrials. CELESTIAL BODIES. Astronomy that influence people’s lives and behavior. Astronomy – study of the night sky(planets, galaxies, stars, and other celestial bodies). UNIVERSE – it is everything that exists. Atoms to Astronomy. 2. Special theory of Relativity. It is a basic property of Nature that:. Velocity of Light in vacuum is constant.. All inertial frames are identical so if two objects are moving with a constant velocity, it is impossible to do any test which allows to measure the velocities in absolute manner.. Universe. Imagine that you find a star with an unknown distance, but you notice that it has a distinctive characteristic that tells you that it is a specific type of star. And let’s imagine that all stars of that type have the same luminosity, and you happen to know the value of that luminosity. You can then estimate the distance for the star you found from the inverse square law of light:. Lecture 2; . April 9 2013. Previously.. On Astro-2. The goal of cosmology is to understand how the universe formed and evolved.. How can we build a theory of the universe valid at all times in every place? . Islands of Stars. Our goals for learning. :. How are the lives of galaxies connected with the history of the universe?. What are the three major types of galaxies?. How are galaxies grouped together?. 4.f. Describe the hierarchical structure (stars, cluster, galaxies, galactic clusters) of the universe & examine the expanding universe to include its age & history & the modern techniques (e.g. radio, infrared, ultraviolet & x-ray astronomy) used to measure objects & distances in the universe. (DOK 2). Chapter 2. Stars. Section 1 Vocabulary. Spectrum. Apparent Magnitude. Absolute Magnitude. Light-Year. Parallax. Color of Stars. Red and Yellow. Cool. Blue . Warm. Blue flame hotter than yellow flame. The Hubble Deep Field. 10 day exposure –field located in the Big Dipper. Edwin Hubble. Edwin . Hubble. Hubble’s Galaxy Classification . Spiral Galaxies. galaxies like the Milky Way with arcing structures lying in a plane and emanating from the nuclear bulge. Chapter 21. How does distance affect an image?. Telescope- device that makes an object in the sky appear closer.. Revolutionized astronomy (study of space)- allowed them to see objects in space for first time..