29.2 M E A S U R I N G T H E S T A R S
|
|
- Clifford Turner
- 5 years ago
- Views:
Transcription
1 29.2 M E A S U R I N G T H E S T A R S
2 MAIN IDEA Stellar classification is based on measurement of light, spectra, temperature, and composition Describe the star life cycle Birth of a Star
3 If enough matter gathers, the gravity becomes so massive that hydrogen atoms join to form helium atoms, producing huge amounts of energy through the process of fusion. It is the energy given off by fusion that causes stars to glow. The life cycle of a star: nebula, low mass star, intermediate mass star (like our Sun), high mass star. Large high mass stars often explode as supernovas, spreading elements throughout the universe. STARS
4 LIFE CYCLE OF A STAR
5
6 SUPERNOVA Stephen Hawking Supernovas Supernova longer video
7 STARS AND CONSTELLATIONS Now that you know about stars and the sun Video (10mins) What are constellations?? Check out this website to learn the common constellations and how to find them: ellation_hunt.htm
8 GROUPS OF STARS Civilizations have been looking at the stars for years They have been looking at the brightest stars and naming them after animals, mythological characters or everyday objects These groups of stars are called constellations
9
10 GROUPS OF STARS Some constellations are visible throughout the year In the northern hemisphere, stars appear to rotate around the north pole These constellations are called circumpolar constellations The big dipper is a circumpolar constellation for the northern hemisphere
11 OTHER EXAMPLES The constellation Orion can be seen in the northern hemisphere in winter time In the summer time we can see Hercules For these reasons, constellations are classified as summer, fall, winter, and spring constellations
12 DOPPLER SHIFTS The Doppler shift is the change in the frequency of a wave as the motion and the receiver of the wave move apart or closer to one another. If a star is moving towards the observer, the shorter the wavelengths are; which we call a blueshift If a star is moving away, the wavelengths become longer, which we call a redshift
13
14 IMAGINE Imagine a duck swimming quickly on a pond. The motion creates waves on the water s surface There are short waves coming towards you and large waves or ripples moving behind the duck. If a star is moving towards us, the waves are smaller and the color will be a blueshift If it moving away from us, the color will be a redshift.
15 LUMINOSITY AND TEMPERATURE The color of a star reveals its temperature and composition to astronomers. Red stars = cool = 3000 ºC Yellow stars = hot = 6000 ºC Blue stars = hottest = ºC ºC Using a spectroscope, the light emitting from a star reveals spectral bands that show certain gases in the star. Of course, spectral lines are also used to identify the movement of stars by utilizing red-shift analysis. Red-shift is an example of the Doppler effect, which states that as a wave-emitting object moves, the wavelength of its waves change
16 WHY IS THIS IMPORTANT? Astronomers can learn about the star and if it is evolving or moving about their centre away or towards the Earth
17 THE HERTZSPRUNG-RUSSELL DIAGRAM By studying stars, astronomers have have created an evolutionary lifespan that stars progress through. The Hertzsprung-Russell diagram was developed to show the different stages of a star s life. 90% of stars are in the main sequence, where energy is produced combining hydrogen atoms into helium. You Tube Video
18
19 BLACK HOLES Stars times more massive than our Sun can end as neutron stars after going supernova. These superheated, super massive dead stars can take trillions of years to cool. Video Stars can vary greatly in size. Although our Sun is an average size, many of the stars we see in the night sky are up to 3000 times as large as the Sun.
Stars. The composition of the star It s temperature It s lifespan
Stars Stars A star is a ball of different elements in the form of gases The elements and gases give off electromagnetic radiation (from nuclear fusion) in the form of light Scientists study the light coming
More informationStars and Galaxies. Content Outline for Teaching
Section 1 Stars A. Patterns of stars - constellations 1. Ancient cultures used mythology or everyday items to name constellations 2. Modern astronomy studies 88 constellations 3. Some constellations are
More informationStars & Galaxies. Chapter 27 Modern Earth Science
Stars & Galaxies Chapter 27 Modern Earth Science Chapter 27, Section 1 27.1 Characteristics of Stars How do astronomers determine the composition and surface temperature of a star? Composition & Temperature
More informationCHAPTER 29: STARS BELL RINGER:
CHAPTER 29: STARS BELL RINGER: Where does the energy of the Sun come from? Compare the size of the Sun to the size of Earth. 1 CHAPTER 29.1: THE SUN What are the properties of the Sun? What are the layers
More informationStars & Galaxies. Chapter 27, Section 1. Composition & Temperature. Chapter 27 Modern Earth Science Characteristics of Stars
Stars & Galaxies Chapter 27 Modern Earth Science Chapter 27, Section 1 27.1 Characteristics of Stars Composition & Temperature Scientists use the following tools to study stars Telescope Observation Spectral
More informationCHAPTER 28 STARS AND GALAXIES
CHAPTER 28 STARS AND GALAXIES 28.1 A CLOSER LOOK AT LIGHT Light is a form of electromagnetic radiation, which is energy that travels in waves. Waves of energy travel at 300,000 km/sec (speed of light Ex:
More informationStarTalk. Sanjay Yengul May "To know ourselves, we must know the stars."
StarTalk Sanjay Yengul May 2016 "To know ourselves, we must know the stars." Twinkle Twinkle How many stars are there? How big are these stars? Picture of night sky What are they made of? Why do they shine?
More informationStars and Galaxies 1
Stars and Galaxies 1 Characteristics of Stars 2 Star - body of gases that gives off great amounts of radiant energy as light and heat 3 Most stars look white but are actually different colors Antares -
More informationStars Short Study Guide
Class: Date: Stars Short Study Guide Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. 1. Most of the light emitted by the Sun comes from the.
More information27.1: Characteristics of Stars
27.1: Characteristics of Stars STAR NOTES: Part 1 What is a Star? A body of gases that gives off energy in the form of light and heat. 27.1: Characteristics of Stars Are all stars the same? No 1. Stars
More informationStellar Evolution Notes
Name: Block: Stellar Evolution Notes Stars mature, grow old and die. The more massive a star is, the shorter its life will be. Our Sun will live about 10 billion years. It is already 5 billion years old,
More informationTo infinity, and beyond!
stars The night sky is filled with stars that shine at different levels of brightness. The brightness of the stars we observe can be related to the size of the star or its distance from Earth. In order
More informationExplain how the sun converts matter into energy in its core. Describe the three layers of the sun s atmosphere.
Chapter 29 and 30 Explain how the sun converts matter into energy in its core. Describe the three layers of the sun s atmosphere. Explain how sunspots are related to powerful magnetic fields on the sun.
More informationThey developed a graph, called the H-R diagram, that relates the temperature of a star to its absolute magnitude.
Ejnar Hertzsprung and Henry Russell noticed that stars with higher temperatures and large sizes also have brighter absolute magnitudes the actual amount of light given off by a star. (also referred to
More informationChapter 28 Stars and Their Characteristics
Chapter 28 Stars and Their Characteristics Origin of the Universe Big Bang Theory about 10-20 bya all matter in the universe existed in a hot dense state about the size of an atom (tiny). That matter sort
More informationChapter 17 Solar System
Chapter 17 Solar System Rotation Earth spinning on its axis (like a top) "TOP" imaginary rod running through the center of the Earth from North pole to South pole The Earth is tilted on its axis at an
More informationChapter 9: Measuring the Stars
Chapter 9: Measuring the Stars About 10 11 (100,000,000,000) stars in a galaxy; also about 10 11 galaxies in the universe Stars have various major characteristics, the majority of which fall into several
More informationA star is a massive sphere of gases with a core like a thermonuclear reactor. They are the most common celestial bodies in the universe are stars.
A star is a massive sphere of gases with a core like a thermonuclear reactor. They are the most common celestial bodies in the universe are stars. They radiate energy (electromagnetic radiation) from a
More informationChapter Introduction Lesson 1 The View from Earth Lesson 2 The Sun and Other Stars Lesson 3 Evolution of Stars Lesson 4 Galaxies and the Universe
Chapter Introduction Lesson 1 The View from Earth Lesson 2 The Sun and Other Stars Lesson 3 Evolution of Stars Lesson 4 Galaxies and the Universe Chapter Wrap-Up What makes up the universe and how does
More informationUnit 1: Space. Section 2- Stars
Unit 1: Space Section 2- Stars Stars Recall: stars are celestial bodies of hot gas that give off heat and light Stars The milky way contains hundreds of billions of stars and is only one of hundreds of
More informationAstronomy-part 3 notes Properties of Stars
Astronomy-part 3 notes Properties of Stars What are Stars? Hot balls of that shine because nuclear fusion (hydrogen to helium) is happening at their cores. They create their own. Have different which allow
More informationASTRONOMY 1 FINAL EXAM 1 Name
ASTRONOMY 1 FINAL EXAM 1 Name Multiple Choice (2 pts each) 1. Sullivan Star is an F spectral class star that is part of a binary star system. It has a MS lifetime of 5 billion years. Its life will eventually
More information8/30/2010. 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.
More informationGalaxies Galore. Types of Galaxies: Star Clusters. Spiral spinning wit arms Elliptical roundish Irregular no set pattern
Stars Studying Stars Astronomers use a spectroscope to study the movement of stars Blue shift towards earth Red shift away from earth Change in a wavelength moving toward or away from earth is the Doppler
More informationQuestion: How do we use a Hertzsprung-Russell Diagram to explain star characteristics?
The Hertzsprung-Russell Diagram Assignment Introduction: The development of the H-R Diagram began with Danish astronomer Ejnar Hertzsprung who began plotting the stars around 1911. American astronomer
More informationStars and Galaxies. Evolution of Stars
chapter 13 3 Stars and Galaxies section 3 Evolution of Stars Before You Read What makes one star different from another? Do you think the Sun is the same as other stars? Write your ideas on the lines below.
More informationThe Hertzprung-Russell Diagram. The Hertzprung-Russell Diagram. Question
Key Concepts: Lecture 21: Measuring the properties of stars (cont.) The Hertzsprung-Russell (HR) Diagram (L versus T) The Hertzprung-Russell Diagram The Stefan-Boltzmann Law: flux emitted by a black body
More informationCoriolis Effect - the apparent curved paths of projectiles, winds, and ocean currents
Regents Earth Science Unit 5: Astronomy Models of the Universe Earliest models of the universe were based on the idea that the Sun, Moon, and planets all orbit the Earth models needed to explain how the
More informationMeasuring Radial & Tangential Velocity. Radial velocity measurement. Tangential velocity measurement. Measure the star s Doppler shift
17. The Nature of the Stars Parallax reveals stellar distance Stellar distance reveals luminosity Luminosity reveals total energy production The stellar magnitude scale Surface temperature determines stellar
More informationPHYS103 Sec 901 Hour Exam No. 3 Practice Version 1 Page: 1
PHYS103 Sec 901 Hour Exam No. 3 Practice Version 1 Page: 1 PHYS103 Sec 901 Hour Exam No. 3 Practice Version 1 Page: 2 1 The HR diagram of a young, open cluster typically shows a. the entire main sequence
More informationLight. Transverse electromagnetic wave, or electromagnetic radiation. Includes radio waves, microwaves, infra-red, visible, UV, X-rays, and gamma rays
Light Transverse electromagnetic wave, or electromagnetic radiation Includes radio waves, microwaves, infra-red, visible, UV, X-rays, and gamma rays The type of light is determined purely by wavelength.
More informationStar Formation A cloud of gas and dust, called a nebula, begins spinning & heating up. Eventually, it gets hot enough for fusion to take place, and a
Stars Star- large ball of gas held together by gravity that produces tremendous amounts of energy and shines Sun- our closest star Star Formation A cloud of gas and dust, called a nebula, begins spinning
More informationWhat is a star? A body of gases that gives off tremendous amounts of energy in the form of light & heat. What star is closest to the earth?
Stars What is a star? A body of gases that gives off tremendous amounts of energy in the form of light & heat. What star is closest to the earth? Answer: The SUN It s about 150,000,000 km from earth =
More informationProperties of Stars. Characteristics of Stars
Properties of Stars Characteristics of Stars A constellation is an apparent group of stars originally named for mythical characters. The sky contains 88 constellations. Star Color and Temperature Color
More informationReview Questions for the new topics that will be on the Final Exam
Review Questions for the new topics that will be on the Final Exam Be sure to review the lecture-tutorials and the material we covered on the first three exams. How does speed differ from velocity? Give
More informationPrentice Hall EARTH SCIENCE
Prentice Hall EARTH SCIENCE Tarbuck Lutgens Chapter 25 Beyond Our Solar System 25.1 Properties of Stars Characteristics of Stars A constellation is an apparent group of stars originally named for mythical
More informationChapter 21: Stars Notes
Branches of Earth Science Chapter 21: Stars Notes Astronomy: The study of planets, stars, and other objects in space. Lithosphere: the land masses of earth o Litho means rock Hydrosphere: waters of the
More informationMeasuring Radial & Tangential Velocity. Radial velocity measurement. Tangential velocity measurement. Measure the star s Doppler shift
17. The Nature of the Stars Parallax reveals stellar distance Stellar distance reveals luminosity Luminosity reveals total energy production The stellar magnitude scale Surface temperature determines stellar
More informationInstructions. Students will underline the portions of the PowerPoint that are underlined.
STARS Instructions Students will underline the portions of the PowerPoint that are underlined. Nuclear Furnace 1. A star is like a gigantic nuclear furnace. 2. The nuclear reactions inside convert hydrogen
More informationSTARS AND GALAXIES STARS
STARS AND GALAXIES STARS enormous spheres of plasma formed from strong gravitational forces PLASMA the most energetic state of matter; responsible for the characteristic glow emitted by these heavenly
More informationGALAXIES AND STARS. 2. Which star has a higher luminosity and a lower temperature than the Sun? A Rigel B Barnard s Star C Alpha Centauri D Aldebaran
GALAXIES AND STARS 1. Compared with our Sun, the star Betelgeuse is A smaller, hotter, and less luminous B smaller, cooler, and more luminous C larger, hotter, and less luminous D larger, cooler, and more
More information8.8A describe components of the universe, including stars, nebulae, galaxies and use models such as HR diagrams for classification
8.8A describe components of the universe, including stars, nebulae, galaxies and use models such as HR diagrams for classification 8.8B recognize that the Sun is a medium-sized star near the edge of a
More informationLife Cycle of a Star - Activities
Name: Class Period: Life Cycle of a Star - Activities A STAR IS BORN STAGES COMMON TO ALL STARS All stars start as a nebula. A nebula is a large cloud of gas and dust. Gravity can pull some of the gas
More informationCST Prep- 8 th Grade Astronomy
CST Prep- 8 th Grade Astronomy Chapter 15 (Part 1) 1. The theory of how the universe was created is called the 2. Which equation states that matter and energy are interchangeable? 3. All matter in the
More informationBeyond 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
More informationThe Universe. But first, let s talk about light! 2012 Pearson Education, Inc.
The Universe But first, let s talk about light! Light is fast! The study of light All forms of radiation travel at 300,000,000 meters (186,000 miles) per second Since objects in space are so far away,
More informationCh. 25 In-Class Notes: Beyond Our Solar System
Ch. 25 In-Class Notes: Beyond Our Solar System ES2a. The solar system is located in an outer edge of the disc-shaped Milky Way galaxy, which spans 100,000 light years. ES2b. Galaxies are made of billions
More informationASTRONOMY 1 EXAM 3 a Name
ASTRONOMY 1 EXAM 3 a Name Identify Terms - Matching (20 @ 1 point each = 20 pts.) Multiple Choice (25 @ 2 points each = 50 pts.) Essays (choose 3 of 4 @ 10 points each = 30 pt 1.Luminosity D 8.White dwarf
More informationLow mass stars. Sequence Star Giant. Red. Planetary Nebula. White Dwarf. Interstellar Cloud. White Dwarf. Interstellar Cloud. Planetary Nebula.
Low mass stars Interstellar Cloud Main Sequence Star Red Giant Planetary Nebula White Dwarf Interstellar Cloud Main Sequence Star Red Giant Planetary Nebula White Dwarf Low mass stars Interstellar Cloud
More informationThe Night Sky. The Universe. The Celestial Sphere. Stars. Chapter 14
The Night Sky The Universe Chapter 14 Homework: All the multiple choice questions in Applying the Concepts and Group A questions in Parallel Exercises. Celestial observation dates to ancient civilizations
More informationTHE 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
More informationGraspIT 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
More informationPosition 1 Position 2 6 after position 1 Distance between positions 1 and 2 is the Bigger = bigger parallax (Ɵ)
STARS CHAPTER 10.1 the solar neighborhood The distances to the nearest stars can be measured using Parallax => the shift of an object relative to some distant background as the observer s point of view
More informationa. Star A c. The two stars are the same distance b. Star B d. Not enough information
Name: Astro 102 S17 Test 1 Multiple Choice Identify the choice that best completes the statement or answers the question. 1. Your test is Version A. Please fill in the circle for A for this question on
More informationWhat is a star made from? How long does a star last? Write your ideas on the lines below. What does the colour of a star reveal?
Stars Textbook pages 368 381 Section 11.1 Summary Before You Read What is a star made from? How long does a star last? Write your ideas on the lines below. Mark the Text Reinforce Your Understanding As
More informationEarth-based parallax measurements have led to the conclusion that the Pleiades star cluster is about 435 light-years from Earth.
1 The Pleiades star cluster is a prominent sight in the night sky. All the stars in the cluster were formed from the same gas cloud. Hence the stars have nearly identical ages and compositions, but vary
More informationUnit 6 Lesson 1 How Do the Sun, Earth, and Moon Interact? Copyright Houghton Mifflin Harcourt Publishing Company
Unit 6 Lesson 1 How Do the Sun, Earth, and Moon Interact? Night and Day Earth rotates, or turns like a top. Earth s rotation causes day and night. Earth rotates around an imaginary line called an axis,
More informationNSCI 314 LIFE IN THE COSMOS
NSCI 314 LIFE IN THE COSMOS 2 BASIC ASTRONOMY, AND STARS AND THEIR EVOLUTION Dr. Karen Kolehmainen Department of Physics CSUSB COURSE WEBPAGE: http://physics.csusb.edu/~karen MOTIONS IN THE SOLAR SYSTEM
More informationthe nature of the universe, galaxies, and stars can be determined by observations over time by using telescopes
the nature of the universe, galaxies, and stars can be determined by observations over time by using telescopes The spectral lines of stars tell us their approximate composition Remember last year in Physics?
More informationNotepack 23 12/19/2014 Stellar Evolution: Aim: The Life Cycle of a Star
Notepack 23 12/19/2014 Stellar Evolution: Aim: The Life Cycle of a Star Do Now: Where do stars come from? What are they made of? What is a Star? What is a Star? A star is a massive ball of gas that has
More information1. Star: A object made of gas found in outer space that radiates.
1. Star: A object made of gas found in outer space that radiates. 2. Stars produce extremely great quantities of energy through the process of. The chemical formula for nuclear fusion looks like this:
More informationEarth 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
More informationGalaxies and Stars. 3. Base your answer to the following question on The reaction below represents an energy-producing process.
Galaxies and Stars 1. To an observer on Earth, the Sun appears brighter than the star Rigel because the Sun is A) hotter than Rigel B) more luminous than Rigel C) closer than Rigel D) larger than Rigel
More informationStars: some basic characteristics
Stars: some basic characteristics Stars! How bright are they? How massive are they? What are the different types? How long do they live? How hot are they? Stellar brightness and luminosity The apparent
More informationCosmology, Galaxies, and Stars OUR VISIBLE UNIVERSE
Cosmology, Galaxies, and Stars OUR VISIBLE UNIVERSE Cosmology Cosmology is the study of the universe; its nature, origin and evolution. General Relativity is the mathematical basis of cosmology from which
More informationAbstracts of Powerpoint Talks - newmanlib.ibri.org - Stars & Galaxies. Robert C. Newman
Stars & Galaxies Robert C. Newman Stars & Galaxies Here we want to start with stars, looked at from two different perspectives: What they look like from earth What we know about them from astronomy and
More informationStars, Galaxies, and the Universe
Stars, Galaxies, and the Universe Chapter Test A Multiple Choice Write the letter of the correct answer on the line at the left. 1. What is a giant ball of hot gases that undergo nuclear fusion? a. a planet
More informationGeoscience Astronomy Formative on Stellar Evolution and Galaxies
Name: Class: _ Date: _ Geoscience Astronomy Formative on Stellar Evolution and Galaxies Multiple Choice Identify the choice that best completes the statement or answers the question. 1. What are binary
More informationchapter 31 Stars and Galaxies
chapter 31 Stars and Galaxies Day 1:Technology and the Big Bang Studying the Stars A. Telescopes - Electromagnetic radiation emitted by stars and other objects include light, radio, and X-ray Space telescopes
More informationTextbook Chapters 24 - Stars Textbook Chapter 25 - Universe. Regents Earth Science with Ms. Connery
Textbook Chapters 24 - Stars Textbook Chapter 25 - Universe Regents Earth Science with Ms. Connery SPECTROSCOPY is the study of light. Read to learn - textbook pages 674-677 STAR LIGHT gives us characteristics
More informationAPPENDIX. 1: Astronomy Ranking Task: Phases of the Moon
Exercise #1 1: Astronomy Ranking Task: Phases of the Moon Description: The figure below shows a top view of the Sun, Earth, and five different positions (A - E) of the Moon during one orbit of Earth. Note
More informationAstronomy 1144 Exam 3 Review
Stars and Stellar Classification Astronomy 1144 Exam 3 Review Prof. Pradhan 1. What is a star s energy source, or how do stars shine? Stars shine by fusing light elements into heavier ones. During fusion,
More informationScience 30 Unit C Electromagnetic Energy
Science 30 Unit C Electromagnetic Energy Outcome 2: Students will describe the properties of the electromagnetic spectrum and their applications in medical technologies, communication systems and remote-sensing
More informationSTUDY GUIDE FOR PHYSICAL SCIENCE EXAM
STUDY GUIDE FOR PHYSICAL SCIENCE EXAM 1 2017 VOCABULARY: Branches of science Density Low mass star High mass star Manipulated variable Responding variable Claim Inference Precision Density Accuracy Spectroscopy
More informationThe Universe. 3. Base your answer to the following question on The diagram below represents the bright-line spectrum for an element.
A) B) The Universe 1. According to the Big Bang theory, which graph hest represents the relationship between time and the size of the universe from the beginning of the universe to the present? C) D) 2.
More informationANSWER KEY. Stars, Galaxies, and the Universe. Telescopes Guided Reading and Study. Characteristics of Stars Guided Reading and Study
Stars, Galaxies, a the Universe Stars, Galaxies, and the Universe Telescopes Use Target Reading Skills Check student definitions for accuracy. 1. Electromagneticradiationisenergythatcan travel through
More informationAstronomy 102: Stars and Galaxies Final Exam Review Problems Revision 2
Astronomy 102: Stars and Galaxies Final Exam Review Problems Revision 2 Multiple Choice Questions: The first eight questions are multiple choice. Except where explicitly noted, only one answer is correct
More information18. Stellar Birth. Initiation of Star Formation. The Orion Nebula: A Close-Up View. Interstellar Gas & Dust in Our Galaxy
18. Stellar Birth Star observations & theories aid understanding Interstellar gas & dust in our galaxy Protostars form in cold, dark nebulae Protostars evolve into main-sequence stars Protostars both gain
More informationLife Cycle of a Star Worksheet
Life Cycle of a Star Worksheet A STAR IS BORN STAGES COMMON TO ALL STARS All stars start as a nebula. A nebula is a large cloud of gas and dust. Gravity can pull some of the gas and dust in a nebula together.
More informationSTAR PROPERTIES. How Many Stars in Leo? How Many Stars in Orion? How Many Stars in Ursa Major? How Many Stars in Gemini? 4/30/15.
4/30/15 Contela7ons STAR PROPERTIES How Many Stars in Orion? 25 8 100 >1,000,000 50 21 100 >1,000,000 Scorpius Canis Minor Canis Major Leo How Many Stars in Leo? 25 16 100 >1,000,000 How Many Stars in
More informationCONTENT EXPECTATIONS
THE SUN & THE STARS CONTENT EXPECTATIONS STARS What are stars? Are they all the same? What makes them different? What is our nearest star? THE SUN Why is it important? provides heat and light that we need
More information25.2 Stellar Evolution. By studying stars of different ages, astronomers have been able to piece together the evolution of a star.
25.2 Stellar Evolution By studying stars of different ages, astronomers have been able to piece together the evolution of a star. Star Birth The birthplaces of stars are dark, cool interstellar clouds,
More informationIntroduction to the Night Sky
Slide 1 / 106 Slide 2 / 106 New Jersey Center for Teaching and Learning Progressive Science Initiative This material is made freely available at www.njctl.org and is intended for the non-commercial use
More informationVisit for more fantastic resources. OCR. A Level. A Level Physics. Astrophysics 1 (Answers) Name: Total Marks: /30
Visit http://www.mathsmadeeasy.co.uk/ for more fantastic resources. OCR A Level A Level Physics Astrophysics 1 (Answers) Name: Total Marks: /30 Maths Made Easy Complete Tuition Ltd 2017 1. Amongst all
More informationLecture PowerPoints. Chapter 33 Physics: Principles with Applications, 7 th edition Giancoli
Lecture PowerPoints Chapter 33 Physics: Principles with Applications, 7 th edition Giancoli This work is protected by United States copyright laws and is provided solely for the use of instructors in teaching
More informationBased on the reduction of the intensity of the light from a star with distance. It drops off with the inverse square of the distance.
6/28 Based on the reduction of the intensity of the light from a star with distance. It drops off with the inverse square of the distance. Intensity is power per unit area of electromagnetic radiation.
More informationAstronomy. Chapter 15 Stellar Remnants: White Dwarfs, Neutron Stars, and Black Holes
Astronomy Chapter 15 Stellar Remnants: White Dwarfs, Neutron Stars, and Black Holes are hot, compact stars whose mass is comparable to the Sun's and size to the Earth's. A. White dwarfs B. Neutron stars
More informationHertzsprung-Russell Diagram
Hertzsprung-Russell Diagram Objectives: To learn what a Hertzsprung-Russell Diagram is, what its major regions represent, and how to construct such a diagram. To study the evolution of star clusters. Equipment:
More informationStars Star birth and kinds Elemental furnaces Star death and heavy elements
Stars Star birth and kinds Elemental furnaces Star death and heavy elements Matter was not uniformly distributed as the universe expanded after the Big Bang. This lumpy universe coalesced under the force
More informationSolar System Glossary. The point in an object s elliptical orbit farthest from the body it is orbiting
Solar System Glossary Apogee Atmosphere Asteroid Axis Autumn Barred spiral The point in an object s elliptical orbit farthest from the body it is orbiting The air that surrounds Earth and other planets
More informationDaily Science 04/04/2017
Daily Science 04/04/2017 Which statement best describes the difference between type A stars and type B stars as shown in the diagram? a. Type A stars burn for a shorter amount of time than type B stars.
More informationStudying Earth and Space
Studying Earth and Space The Sun Stars are made of hot, glowing gases. The Sun is a star. It is made of hot, glowing gases. The Sun is the closest star to Earth. This is why it looks bigger and brighter
More informationA Star is born: The Sun. SNC1D7-Space
A Star is born: The Sun SNC1D7-Space Exploring the Sun Our Sun, a star, is the most important celestial object for life on Earth. The solar nebula theory is the current theory used to explain the formation
More informationStudy Guide Chapter 2
Section: Stars Pages 32-38 Study Guide Chapter 2 Circle the letter of the best answer for each question. 1. What do scientists study to learn about stars? a. gravity c. space b. starlight d. colors COLOR
More informationApparent Motion. How do celestial objects appear to move across the sky?
Apparent Motion How do celestial objects appear to move across the sky? 1 Apparent Motions Geocentric Universe - idea that Earth was at the center of the solar system Stars all rotate around the Earth
More informationBeyond the Solar System 2006 Oct 17 Page 1 of 5
I. Stars have color, brightness, mass, temperature and size. II. Distances to stars are measured using stellar parallax a. The further away, the less offset b. Parallax angles are extremely small c. Measured
More informationConstellations & Stars
Constellations & Stars I. Constellations Group of stars that appear to form a pattern in the sky. 88 recognized by International Astronomy Union A. Zodiac Band of 12 constellations along the ecliptic.
More informationMasses are much harder than distance, luminosity, or temperature. Binary Stars to the Rescue!! AST 101 Introduction to Astronomy: Stars & Galaxies
Last Two Classes Measuring the Stars AST 101 Introduction to Astronomy: Stars & Galaxies 1. Measuring distances 2. Measuring stellar luminosities 3. Measuring temperatures Next 4. Measuring masses Masses
More informationA star is at a distance of 1.3 parsecs, what is its parallax?
Stars Spectral lines from stars Binaries and the masses of stars Classifying stars: HR diagram Luminosity, radius, and temperature Vogt-Russell theorem Main sequence Evolution on the HR diagram A star
More informationHow Do Stars Appear from Earth?
How Do Stars Appear from Earth? Magnitude: the brightness a star appears to have from Earth Apparent Magnitude depends on 2 things: (actual intrinsic brightness) The color of a star is related to its temperature:
More information