The History and Philosophy of Astronomy

Galaxies: The Nature of Galaxies

Galaxies: The Nature of Galaxies The Milky Way The Milky Way is visible to the unaided eye at most place on Earth Galileo in 1610 used his telescope to resolve the faint band into numerous stars In the

The History and Philosophy of Astronomy

Astronomy 350L (Fall 2006) The History and Philosophy of Astronomy (Lecture 16: Birth of Astrophysics I) Instructor: Volker Bromm TA: Jarrett Johnson The University of Texas at Austin Big Q: What is the

Astronomy 1 Winter Lecture 24; March

Astronomy 1 Winter 2011 Lecture 24; March 7 2011 Previously on Astro-1 Introduction to special relativity Introduction to general relativity Introduction to black holes, stellar and supermassive Today..

Cosmology. Stellar Parallax seen. The modern view of the universe

Cosmology The modern view of the universe SC/NATS 1730, XXVIIICosmology 1 Stellar Parallax Copernicus said stellar parallax couldn t be seen because the stars were so far away. A strictly ad hoc explanation

The Milky Way, Our galaxy

The Milky Way, Our galaxy Diffuse Band of light that crosses the Sky in the North Galileo: it s faint stars Early speculation and fleshing out where we are 1 Milky Way from Zuerich Milky Way from Australia

According to the currents models of stellar life cycle, our sun will eventually become a. Chapter 34: Cosmology. Cosmology: How the Universe Works

Chapter 34: Cosmology According to the currents models of stellar life cycle, our sun will eventually become a a) Cloud of hydrogen gas b) Protostar c) Neutron star d) Black hole e) White dwarf id you

CH 14 MODERN COSMOLOGY The Study of Nature, origin and evolution of the universe Does the Universe have a center and an edge? What is the evidence

CH 14 MODERN COSMOLOGY The Study of Nature, origin and evolution of the universe Does the Universe have a center and an edge? What is the evidence that the Universe began with a Big Bang? How has the Universe

The History and Philosophy of Astronomy

Astronomy 350L (Fall 2006) The History and Philosophy of Astronomy (Lecture 22: Hubble II) Instructor: Volker Bromm TA: Jarrett Johnson The University of Texas at Austin Edwin P. Hubble: Mariner of the

Astronomy 114. Lecture35:TheBigBang. Martin D. Weinberg. UMass/Astronomy Department

Astronomy 114 Lecture35:TheBigBang Martin D. Weinberg weinberg@astro.umass.edu UMass/Astronomy Department A114: Lecture 35 09 May 2005 Read: Ch. 28,29 Astronomy 114 1/18 Announcements PS#8 due Monday!

The Milky Way Galaxy and Interstellar Medium

The Milky Way Galaxy and Interstellar Medium Shape of the Milky Way Uniform distribution of stars in a band across the sky lead Thomas Wright, Immanuel Kant, and William Herschel in the 18th century to

COSMOLOGY PHYS 30392 OBSERVING THE UNIVERSE Part I Giampaolo Pisano - Jodrell Bank Centre for Astrophysics The University of Manchester - January 2013 http://www.jb.man.ac.uk/~gp/ giampaolo.pisano@manchester.ac.uk

Oases in the Dark: Galaxies as probes of the Cosmos

Utah State University DigitalCommons@USU Public Talks Astrophysics 8-10-2007 Oases in the Dark: Galaxies as probes of the Cosmos Shane L. Larson Utah State University Follow this and additional works at:

The History and Philosophy of Astronomy

Astronomy 350L (Spring 2005) The History and Philosophy of Astronomy (Lecture 14: Newton II) Instructor: Volker Bromm TA: Amanda Bauer The University of Texas at Austin En Route to the Principia Newton

Sex in Space: Astronomy 330 TR Noyes Laboratory 217. Outline. Discussion Class

Sex in Space: Astronomy 330 TR 1000-1050 Noyes Laboratory 217 This class (Lecture 3): Expanding Universe Next Class: Cosmology Music: Galaxies Laura Veirs HW1 due tonight! (grace period until Feb 3 rd

Lecture Outlines. Chapter 26. Astronomy Today 8th Edition Chaisson/McMillan Pearson Education, Inc.

Lecture Outlines Chapter 26 Astronomy Today 8th Edition Chaisson/McMillan Chapter 26 Cosmology Units of Chapter 26 26.1 The Universe on the Largest Scales 26.2 The Expanding Universe 26.3 The Fate of the

Lecture 22: The expanding Universe. Astronomy 111 Wednesday November 15, 2017

Lecture 22: The expanding Universe Astronomy 111 Wednesday November 15, 2017 Reminders Online homework #10 due Monday at 3pm Then one week off from homeworks Homework #11 is the last one The nature of

IB Physics - Astronomy

Solar System Our Solar System has eight planets. The picture below shows their relative sizes, but NOT their relative distances. A planet orbits the sun, and has gravitationally cleared its orbital area

Active Galaxies and Galactic Structure Lecture 22 April 18th

Active Galaxies and Galactic Structure Lecture 22 April 18th FINAL Wednesday 5/9/2018 6-8 pm 100 questions, with ~20-30% based on material covered since test 3. Do not miss the final! Extra Credit: Thursday

The Milky Way Galaxy Guiding Questions

The Milky Way Galaxy Guiding Questions 1. What is our Galaxy? How do astronomers know where we are located within it? 2. What is the shape and size of our Galaxy? 3. How do we know that our Galaxy has

The Milky Way Galaxy

The Milky Way Galaxy Guiding Questions 1. What is our Galaxy? How do astronomers know where we are located within it? 2. What is the shape and size of our Galaxy? 3. How do we know that our Galaxy has

Side View. disk mostly young stars and lots of dust! Note position of the Sun, just over half way out. This Class (Lecture 28): More Milky Way

This Class (Lecture 28): More Milky Way Next Class: Nearby Galaxies Music: Under the Milky Way The Church HW 10 due on 2 nd Sunday! Nov. 17, 2009! The 2009 Leonids could produce more than 500 shooting

Astro-2: History of the Universe

Astro-2: History of the Universe Lecture 6; April 30 2013 Lecture 5 - Summary 1 Mass concentrations between us and a given object in the sky distort the image of that object on the sky, acting like magnifying

Exam 3 Astronomy 100, Section 3. Some Equations You Might Need

Exam 3 Astronomy 100, Section 3 Some Equations You Might Need modified Kepler s law: M = [a(au)]3 [p(yr)] (a is radius of the orbit, p is the rotation period. You 2 should also remember that the period

The History and Philosophy of Astronomy

Astronomy 350L (Spring 2005) The History and Philosophy of Astronomy (Lecture 27: Modern Developments II: Inflation) Instructor: Volker Bromm TA: Amanda Bauer The University of Texas at Austin Big Bang

Astronomy 102: Stars and Galaxies Review Exam 3

October 31, 2004 Name: Astronomy 102: Stars and Galaxies Review Exam 3 Instructions: Write your answers in the space provided; indicate clearly if you continue on the back of a page. No books, notes, or

Class 5 Cosmology Large-Scale Structure of the Universe What do we see? Big Bang Cosmology What model explains what we see?

Class 1 Introduction, Background History of Modern Astronomy The Night Sky, Eclipses and the Seasons Kepler's Laws Newtonian Gravity General Relativity Matter and Light Telescopes Class 2 Solar System

ASTRONOMY 202 Spring 2007: Solar System Exploration

ASTRONOMY 202 Spring 2007: Solar System Exploration Instructor: Dr. David Alexander Web-site: www.ruf.rice.edu/~dalex/astr202_s07 Class 3: Our Place in the Universe [1/19/07] Announcements Scale in the

PART 3 Galaxies. Gas, Stars and stellar motion in the Milky Way

PART 3 Galaxies Gas, Stars and stellar motion in the Milky Way The Interstellar Medium The Sombrero Galaxy Space is far from empty! Clouds of cold gas Clouds of dust In a galaxy, gravity pulls the dust

8/30/2010. Classifying Stars. Classifying Stars. Classifying Stars

Classifying Stars In the early 1900s, Ejnar Hertzsprung and Henry Russell made some important observations. They noticed that, in general, stars with higher temperatures also have brighter absolute magnitudes.

The Interstellar Medium. Jayant Murthy Indian Institute of Astrophysics

The Interstellar Medium Jayant Murthy Indian Institute of Astrophysics jmurthy@yahoo.com murthy@iiap.res.in http://www.iiap.res.in What is the ISM? Interstellar gas. Emission nebulae. What is the ISM?

Unit 7 Review Guide: The Universe

Unit 7 Review Guide: The Universe Light Year: Unit of distance used to measure the great vastness of space. Galaxy: Large group of stars, gas, and dust held together by gravity. Spiral Galaxy: Galaxy in

Chapter 26: Cosmology

Chapter 26: Cosmology Cosmology means the study of the structure and evolution of the entire universe as a whole. First of all, we need to know whether the universe has changed with time, or if it has

OPTION E, ASTROPHYSICS TEST REVIEW

IB PHYSICS Name: DEVIL PHYSICS Period: Date: BADDEST CLASS ON CAMPUS OPTION E, ASTROPHYSICS TEST REVIEW S1. This question is about the nature of certain stars on the Hertzsprung-Russell diagram and determining

Origins Lecture 15; May

Origins Lecture 15; May 29 2014 Previously on Origins Time of history/humans vs. time of god What was there before time? Does this make sense? The way we measure time influences the way we use time The

Cosmology. What is Cosmology?

Cosmology What is Cosmology? The study of the structure and evolution of the entire universe The idea is to form picture of the entire Universe: origin, size, and future We will make assumptions that what

Physics 133: Extragalactic Astronomy ad Cosmology

Physics 133: Extragalactic Astronomy ad Cosmology Lecture 1; January 6 2014 Physics 133 Instructor: Prof. Tommaso Treu Lectures: MW 9:30-10:45 PHELP3519 Office hours: M 2:30 3:30 W 11:00-12:00 Broida 2015F

Exam 3 Astronomy 114

Exam 3 Astronomy 114 Select the answer that is the most appropriate among the choices given. 1. What is the Hubble law? (A) a relation between a galaxy s mass and radius. (B) a rule that describes the

Chapter 17 Cosmology

Chapter 17 Cosmology Over one thousand galaxies visible The Universe on the Largest Scales No evidence of structure on a scale larger than 200 Mpc On very large scales, the universe appears to be: Homogenous

The Size of the Milky Way; Our Place Within It

The Size of the Milky Way; Our Place Within It The Visible Milky Way The Milky Way as Seen From Texas (from Canada, we can t see the Southern Cross) The Obvious Questions n n n n n n How big is the Milky

OPTION E, ASTROPHYSICS TEST REVIEW

IB PHYSICS Name: DEVIL PHYSICS Period: Date: # Marks: XX Raw Score: IB Curve: BADDEST CLASS ON CAMPUS OPTION E, ASTROPHYSICS TEST REVIEW S1. This question is about the nature of certain stars on the Hertzsprung-Russell

Galaxies: Island Universes in the Cosmos

Utah State University DigitalCommons@USU Colloquia and Seminars Astrophysics 2-9-2011 Galaxies: Island Universes in the Cosmos Shane L. Larson Utah State University Follow this and additional works at:

HNRS 227 Lecture 18 October 2007 Chapter 12. Stars, Galaxies and the Universe presented by Dr. Geller

HNRS 227 Lecture 18 October 2007 Chapter 12 Stars, Galaxies and the Universe presented by Dr. Geller Recall from Chapters 1-11 Units of length, mass, density, time, and metric system The Scientific Method

Natural History of the Heavens in the Eighteenth Century

Natural History of the Heavens in the Eighteenth Century Last time Newtonian astronomy in the 18c The tasks The tools Measure planetary motions Explain motions with Newton s laws Prove long-term stability

An Introduction to AST 112 Stars, Galaxies, and the Cosmos

An Introduction to AST 112 Stars, Galaxies, and the Cosmos What is Astronomy? 50 years ago, astronomy was the study of everything outside Earth s atmosphere: the planets, the Sun, stars, galaxies, the

Galaxies & Introduction to Cosmology

Galaxies & Introduction to Cosmology Other Galaxies: How many are there? Hubble Deep Field Project 100 hour exposures over 10 days Covered an area of the sky about 1/100 the size of the full moon Probably

The Milky Way. 20 March The Shape of the Galaxy Stellar Populations and Motions Stars as a Gas. University of Rochester

The Milky Way The Shape of the Galaxy Stellar Populations and Motions Stars as a Gas 20 March 2018 University of Rochester The Milky Way Today s lecture: The shape of the Galaxy Stellar populations and

Possible Solutions to Olbers Paradox

Possible Solutions to Olbers Paradox Olbers Paradox summarises the universe s contradiction of physics and investigates why the sky does not remain light throughout night. Despite the Earth s 24- hour

ASTRONOMY (ASTRON) ASTRON 113 HANDS ON THE UNIVERSE 1 credit.

Astronomy (ASTRON) 1 ASTRONOMY (ASTRON) ASTRON 100 SURVEY OF ASTRONOMY 4 credits. Modern exploration of the solar system; our galaxy of stars, gas and dust; how stars are born, age and die; unusual objects

! What the hell happened to Pluto?! The speed of light!! Scale of the Solar System

Leslie Looney This Class (Lecture 2): Phone: 244-3615 Email: lwl1@1illinois1.1edu Poor Pluto Office: Astro Building #218 Office Hours: Next Class: R: 10:00-11:00 a.m. Astro-Death is very unlikely or by

Welcome to Astronomy 101

Welcome to Astronomy 101 Course Instructor: Prof. Darren L. DePoy Suggested Textbook: Bennett, Donahue, Schneider, & Voit: The essential Cosmic Perspective Web Site: http://faculty.physics.tamu.edu/depoy/astr101.html

The Cosmological Distance Ladder. It's not perfect, but it works!

The Cosmological Distance Ladder It's not perfect, but it works! First, we must know how big the Earth is. Next, we must determine the scale of the solar system. Copernicus (1543) correctly determined

Taking the census of the Milky Way Galaxy. Gerry Gilmore Professor of Experimental Philosophy Institute of Astronomy Cambridge

Taking the census of the Milky Way Galaxy Gerry Gilmore Professor of Experimental Philosophy Institute of Astronomy Cambridge astrophysics cannot experiment merely observe and deduce: so how do we analyse

Lecture 14: Other Galaxies A2020 Prof. Tom Megeath. The Milky Way in the Infrared 3/17/10. NGC 7331: the Milky Way s Twins. Spiral Galaxy bulge halo

Lecture 14: Other Galaxies A2020 Prof. Tom Megeath Our Galaxy: Side View We see our galaxy edge-on Primary features: Disk: young and old stars where we live. Bulge: older stars Halo: oldest stars, globular

Telescopes and Electromagnetic Radiation

Telescopes and Electromagnetic Radiation Exploring the Milky Way Appears as a milky band of light across the sky A small telescope reveals that it is composed of many stars (Galileo again!) Our knowledge

Big Galaxies Are Rare! Cepheid Distance Measurement. Clusters of Galaxies. The Nature of Galaxies

Big Galaxies Are Rare! Potato Chip Rule: More small things than large things Big, bright spirals are easy to see, but least common Dwarf ellipticals & irregulars are most common Faint, hard to see Mostly

How do we measure properties of a star? Today. Some Clicker Questions - #1. Some Clicker Questions - #1

Today Announcements: HW#8 due Friday 4/9 at 8:00 am. The size of the Universe (It s expanding!) The Big Bang Video on the Big Bang NOTE: I will take several questions on exam 3 and the final from the videos

Stars. 1.1 A Modern View of the Universe. What Objects Do We Find in The Universe? 8/12/2010. Our goals for learning:

1.1 A Modern View of the Universe Our goals for learning: What is our place in the universe? How did we come to be? How can we know what the universe was like in the past? Can we see the entire universe?

Astronomy Hour Exam 2 March 10, 2011 QUESTION 1: The half-life of Ra 226 (radium) is 1600 years. If you started with a sample of 100 Ra 226

Astronomy 101.003 Hour Exam 2 March 10, 2011 QUESTION 1: The half-life of Ra 226 (radium) is 1600 years. If you started with a sample of 100 Ra 226 atoms, approximately how many Ra 226 atoms would be left

Today in Astronomy 142: the Milky Way

Today in Astronomy 142: the Milky Way The shape of the Galaxy Stellar populations and motions Stars as a gas: Scale height, velocities and the mass per area of the disk Missing mass in the Solar neighborhood

LESSON 1. Solar System

Astronomy Notes LESSON 1 Solar System 11.1 Structure of the Solar System axis of rotation period of rotation period of revolution ellipse astronomical unit What is the solar system? 11.1 Structure of the

(Astronomy for Dummies) remark : apparently I spent more than 1 hr giving this lecture

(Astronomy for Dummies) remark : apparently I spent more than 1 hr giving this lecture A.D. 125? Ptolemy s geocentric model Planets ( ) wander among stars ( ) For more info: http://aeea.nmns.edu.tw/aeea/contents_list/universe_concepts.html

BASICS OF COSMOLOGY Astro 2299

BASICS OF COSMOLOGY Astro 2299 We live in a ΛCDM universe that began as a hot big bang (BB) and has flat geometry. It will expand forever. Its properties (laws of physics, fundamental constants) allow

VM Slipher and the discovery of the expanding universe The Big Bang: Fact or Fiction?

VM Slipher and the discovery of the expanding universe The Big Bang: Fact or Fiction? Cormac O Raifeartaigh Waterford Institute of Technology Overview A brief history of experiment (1912-1931) The redshifts

Final Exam Study Guide

Final Exam Study Guide Final is Comprehensive! Covers content of the entire course Please be sure to look at the Study Guides for the first three in-class exams All of that material will be on the final

What is the solar system?

Notes Astronomy What is the solar system? 11.1 Structure of the Solar System Our solar system includes planets and dwarf planets, their moons, a star called the Sun, asteroids and comets. Planets, dwarf

Survey of Astronomy ASTRO 110-5

Survey of Astronomy ASTRO 110-5 Prof. Istvan Szapudi Institute for Astronomy IfA B204/WAT 401 Phone: 956 6196 Email: szapudi@ifa.hawaii.edu Class meets TTh 12:00 to 13:15 WAT 112 Office Hours after class

Olbers Paradox. Lecture 14: Cosmology. Resolutions of Olbers paradox. Cosmic redshift

Lecture 14: Cosmology Olbers paradox Redshift and the expansion of the Universe The Cosmological Principle Ω and the curvature of space The Big Bang model Primordial nucleosynthesis The Cosmic Microwave

The Dawn of Time - II. A Cosmos is Born

The Dawn of Time - II. A Cosmos is Born Learning Objectives! Why does Olbers paradox show the Universe began?! How does Hubble s Law tell us the age of the Universe? If Hubble s Constant is large, is the

The History and Philosophy of Astronomy

Astronomy 350L (Fall 2006) The History and Philosophy of Astronomy (Lecture 17: Birth of Astrophysics II) Instructor: Volker Bromm TA: Jarrett Johnson The University of Texas at Austin Which questions

The Discovery of Other Galaxies. 24. Normal Galaxies

24. Normal Galaxies The discovery of other galaxies Edwin Hubble proved galaxies are very distant Edwin Hubble classified galaxies by shape Methods for determining distances to galaxies The Hubble Law

Chapter 1 Introduction 1.1 The Relevance of Very Distant Galaxies

Chapter 1 Introduction 1.1 The Relevance of Very Distant Galaxies From observations of the Cosmic Microwave Background (e.g., [491]) and from other, independent astronomical observations we know that,

A 103 Notes, Week 14, Kaufmann-Comins Chapter 15

NEARBY GALAXIES I. Brief History A 103 Notes, Week 14, Kaufmann-Comins Chapter 15 A. Kant B. Curtis-Shapley debate C. Distance to Andromeda II. Classification of nearby galaxies: Spirals, Ellipticals,

Betelgeuse. The Life of Stars. Stars can be grouped into 4 major categories based on size: supergiants giants main sequence stars dwarfs.

The Life of A Star The Life of Stars Stars can be grouped into 4 major categories based on size: supergiants giants main sequence stars dwarfs dwarf star Rigel Sun Betelgeuse The Life of Stars Stars can

Cosmology II. Shape and Geometry of the Universe. Physics 113 Goderya. Back to our 2- dimensional analogy:

Cosmology II Physics 113 Goderya Chapter(s): 18 Learning Outcomes: The Cosmological Principle Considering the largest scales in the universe, we make the following fundamental assumptions: 1) Homogeneity:

GraspIT Questions AQA GCSE Physics Space physics

A. Solar system: stability of orbital motions; satellites (physics only) 1. Put these astronomical objects in order of size from largest to smallest. (3) Fill in the boxes in the correct order. the Moon

Earth Science, 13e Tarbuck & Lutgens

Earth Science, 13e Tarbuck & Lutgens Beyond Our Solar System Earth Science, 13e Chapter 24 Stanley C. Hatfield Southwestern Illinois College Properties of stars Distance Distances to the stars are very

Chapter 1 Lecture. The Cosmic Perspective Seventh Edition. A Modern View of the Universe Pearson Education, Inc.

Chapter 1 Lecture The Cosmic Perspective Seventh Edition A Modern View of the Universe Chapter Opener 1.1 The Scale of the Universe Our goals for learning: What is our place in the universe? How big is

Ockham, Olbers and dark matter

Ockham, Olbers and dark matter John Billingsley University of Southern Queensland Abstract. It is the task of the theoretician to explain observations with a theory that has no unnecessary complexity.

Galaxies ASTR 101 4/30/2018

Galaxies ASTR 101 4/30/2018 1 The Milky Way galaxy Shape of a flattened disk with a central spherical bulge 100,000 light years (30 k parsecs) in diameter There are about 200 billion stars in the Milky

The History and Philosophy of Astronomy

Astronomy 350L (Fall 2006) The History and Philosophy of Astronomy (Lecture 3: Antiquity I) Instructor: Volker Bromm TA: Jarrett Johnson The University of Texas at Austin Astronomy and Cosmology in Antiquity:

PH104 Descriptive Astronomy Learning Objectives

PH104 Descriptive Astronomy Learning Objectives March 11, 2008 1 Introduction This list of questions are questions that will need to be answered in order for students to be successful in the course. Each

Galaxies and the expansion of the Universe

Review of Chapters 14, 15, 16 Galaxies and the expansion of the Universe 5/4/2009 Habbal Astro 110-01 Review Lecture 36 1 Recap: Learning from Light How does light tell us what things are made of? Every

THE UNIVERSE CHAPTER 20

THE UNIVERSE CHAPTER 20 THE UNIVERSE UNIVERSE everything physical in and Includes all space, matter, and energy that has existed, now exists, and will exist in the future. How did our universe form, how

Homework 6 Name: Due Date: June 9, 2008

Homework 6 Name: Due Date: June 9, 2008 1. Where in the universe does the general expansion occur? A) everywhere in the universe, including our local space upon Earth, the solar system, our galaxy and

The Milky Way - Chapter 23

The Milky Way - Chapter 23 The Milky Way Galaxy A galaxy: huge collection of stars (10 7-10 13 ) and interstellar matter (gas & dust). Held together by gravity. Much bigger than any star cluster we have

Cosmology. Chapter 18. Cosmology. Observations of the Universe. Observations of the Universe. Motion of Galaxies. Cosmology

Cosmology Chapter 18 Cosmology Cosmology is the study of the structure and evolution of the Universe as a whole How big is the Universe? What shape is it? How old is it? How did it form? What will happen

Outline. The Cosmological Principle II. The Perfect Cosmological Principle. The cosmological principle. Covers chapter 2 + half of chapter 3 in Ryden

Outline Covers chapter 2 + half of chapter 3 in Ryden The Cosmological Principle I The Cosmological Principle II The cosmological principle Voids typically 70 Mpc across The Perfect Cosmological Principle

The Universe and Galaxies. Adapted from:

The Universe and Galaxies Adapted from: http://www.west-jefferson.k12.oh.us/earthandspacescience.aspx Astronomy The study of objects and matter outside the Earth s atmosphere and of their physical and

Beyond Our Solar System Chapter 24

Beyond Our Solar System Chapter 24 PROPERTIES OF STARS Distance Measuring a star's distance can be very difficult Stellar parallax Used for measuring distance to a star Apparent shift in a star's position

NAME Test 1 Astronomy May 1 There are 15 multiple choice questions each worth 2 points, and 5 short answer questions each worth 14 points.

NAME Test 1 Astronomy 123 2013 May 1 There are 15 multiple choice questions each worth 2 points, and 5 short answer questions each worth 14 points. The exam is scored for a total of 15 x 2 points + 5 x

UNIVERSITY OF NORTHERN COLORADO

UNIVERSITY OF NORTHERN COLORADO Course Title: Prefix: SCI109 CRN+Section: The Cosmos The Cosmos - 40842 - SCI 109-943 Prerequisites: No Credit: 3 Term: Summer 2012 (Online) Instructors Physics Professor:

Astronomy 1 Fall 2016

Astronomy 1 Fall 2016 Lecture11; November 1, 2016 Previously on Astro-1 Introduction to stars Measuring distances Inverse square law: luminosity vs brightness Colors and spectral types, the H-R diagram

V. Astronomy Section

EAS 100 Planet Earth Lecture Topics Brief Outlines V. Astronomy Section 1. Introduction, Astronomical Distances, Solar System Learning objectives: Develop an understanding of Earth s position in the solar

Astronomy 113. Dr. Joseph E. Pesce, Ph.D. Distances & the Milky Way. The Curtis View. Our Galaxy. The Shapley View 3/27/18

Astronomy 113 Dr. Joseph E. Pesce, Ph.D. Distances & the Milky Way 14-2 Historical Overview: the Curtis-Shapley Debate ³What is the size of our galaxy? ³What is the nature of spiral nebula? The Curtis

Astronomy 113. Dr. Joseph E. Pesce, Ph.D. Dr. Joseph E. Pesce, Ph.D.

Astronomy 113 Dr. Joseph E. Pesce, Ph.D. Distances & the Milky Way Historical Overview: the Curtis-Shapley Debate ³What is the size of our galaxy? ³What is the nature of spiral nebula? 14-2 ³Occurred in

The Milky Way, Hubble Law, the expansion of the Universe and Dark Matter Chapter 14 and 15 The Milky Way Galaxy and the two Magellanic Clouds.

The Milky Way, Hubble Law, the expansion of the Universe and Dark Matter Chapter 14 and 15 The Milky Way Galaxy and the two Magellanic Clouds. Image taken from the European Southern Observatory in Chile

i>clicker Quiz #14 Which of the following statements is TRUE?

i>clicker Quiz #14 Which of the following statements is TRUE? A. Hubble s discovery that most distant galaxies are receding from us tells us that we are at the center of the Universe B. The Universe started

Chapter 23 The Milky Way Galaxy Pearson Education, Inc.

Chapter 23 The Milky Way Galaxy The Milky Way is our own galaxy viewed from the inside. It is a vast collection of more than 200 billion stars, planets, nebulae, clusters, dust and gas. Our own sun and

Astronomy Today. Eighth edition. Eric Chaisson Steve McMillan

Global edition Astronomy Today Eighth edition Eric Chaisson Steve McMillan The Distance Scale ~1 Gpc Velocity L Distance Hubble s law Supernovae ~200 Mpc Time Tully-Fisher ~25 Mpc ~10,000 pc Time Variable

PHY 475/375. Lecture 2. (March 28, 2012) The Scale of the Universe: The Shapley-Curtis Debate

PHY 475/375 Lecture 2 (March 28, 2012) The Scale of the Universe: The Shapley-Curtis Debate By the 1920 s a debate had developed over whether some of the spiral nebulae catalogued in the 18th century by