PPT-The Fascinating universe of variable stars

Gordon Myers AAVSO Speakers Bureau ALCON 2009 Historical Perspective Mira David Fabricius discovered omicron ceti in 1596 Brightened from 3 rd. Secs. 37.1-37.3. Reminders. Lab . D1-LFA: . Light from Atoms . due Friday @ 4 (this will be the last lab for the semester). In-class Quiz #6 Thursday, November 20???. Keep, reschedule, or delete . will address chapter 37 only. Homogeneous and uniform cosmic expansion . Hubble constant determines scale factor . Hubble diagram was based on a limited distance scale calibrated by Cepheid variable stars in relatively nearby galaxies. Cosmology. The Study of the Creation and Evolution of the Universe as an entity. Did the Universe have a beginning?. If so, how did it begin?. When did it begin?. Has the Universe changed over time?. 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 . Theistic Argument from Order. Prime Principle of Confirmation . Paley-Style Design Argument and the Challenge of Darwinism. Datum (D). Complex and Intricate Structure of human and animal bodies. . D favors theism over chance since D is more to expected given theism than chance.. 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.. Looking at Modern Cosmologies. Robert C. Newman. What is Cosmology?. A study of the known parts of the universe to try to describe the whole universe. Using the information now reaching earth to reconstruct the entire history of the cosmos. 25 years of Astronomy. Etteyeb Nejmeddine. 21 years old. The Astronomical Society of Tunisia (SAT) . The Charlie Bates Solar Astronomy Project (CBSAP). Computer Science . What Are Variable Stars?. Detecting variability. 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. constellations. a. Ancient cultures used . mythology. or everyday items to name constellations. 2. Modern astronomy studies . 88 . constellations. 3. Some constellations are not . visible. all year because Earth revolves around the Sun. 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.. Astro 4: Stars, Galaxies, and the Universe *Rick Nolthenius Call me “Rick”. *Office: 706a 479-6506 *email: rinolthe@cabrillo.edu *visit my extremely excellent website! Textbook – “The Cosmic Perspective – Stars, Galaxies, Cosmology” – Bennett, Donahue, Schneider, and