PPT-Class Notes: Objects in the Universe

Major components of the universe include Galaxies Black Holes Nebulae Stars A galaxy is a large grouping of stars and interstellar gas and dust These components are held together in the galaxy by their gravity . Expanding Universe – consistent w/ a Big Bang?. Olber’s Paradox. Large Scale Structure and relation to Dark Matter. Evidence for the Big Bang. The Cosmic Microwave Background. The abundances of the elements. Lecture . 10; . May . 14 2013. Previously… on astro-2. If the universe is homogenous and isotropic and correctly described by General Relativity:. At any given time the universe is a 3D space. It could be open/close/flat. 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. w. here does it end?. Chris North. Cardiff University. The speed of light. c = 299,792,458 m/s. . or 670,616,629 miles per hour. . or 2 million . million. furlongs per fortnight. or ~300,000 km/s. 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 . Flat Earth Theory. Flat Earth Theory. Date: Ancient Times. Scientists: Babylonians, Egyptians. Theory Description: The world is a flat disk, not a sphere. Evidence: None. As early as the 4. th. century BC, scientists and philosophers, such as Aristotle, realized that the Earth was a sphere. Essential Question: 6. Essential Question 6:. Where does Earth and Man fit into the . Universe. ?. https://search.yahoo.com/yhs/search?p=whre+does+earth+fit+into+the+universe&ei=UTF-8&hspart=mozilla&hsimp=yhs-002. Lecture . 11; . May . 21 2013. Previously… on astro-2. In an expanding universe the relationship between redshift and distance depends on the cosmological parameters (i.e. the geometry and expansion of the universe). Why?. Direct & Indirect Objects. Direct & Indirect Objects can happen when your sentence has an ACTION verb:. Jump. Skip. Cook. Yell. smile. Subject Compliments. Subject Compliments happen when your sentence has a LINKING verb.. Topic D.1.2. Distinguish between an . object. . (definition, template or class) and . instantiation. Class vs. Object. Reminder: Steps in object creation. A . class provides the . blueprints. for objects. . If the universe was 1 year old . . .. Science/religion – either/or?. How do we predict the conditions of the early universe?. What are the different eras in the early universe?. What key lines of evidence support the Big Bang model?. 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 . Astronomy. , derived from the Greek words for . star law. , is the scientific study of all objects beyond our world. . Astronomy is not a “stand-alone” science. It combines areas from a number of other fields, including mathematics, chemistry, geology, biology and physics. . Creating and Maintaining Business Objects Universes. Software & Setup Required. The Basics. Hands On. Tips & Tricks. What’s Coming (Clarity 13.4 Changes). Q&A. Overview. Software & Setup Required.