Apparent brightness Study guides, Class notes & Summaries

What are the characteristics of disk stars (yellow) of the Milky Way Galaxy? - High mass stars, the Sun, youngest stars, and stars that all orbit in nearly the same plane What are the characteristics of halo stars (green) of the Milky Way Galaxy? - Globular clusters, oldest stars, stars whose orbits can be inclined at any angle, and stars with smallest abundance of heavy elements. What are the characteristics of spiral galaxies? - They contain abundant clouds of cool gas and dust, are rare...

PHSC 102 Final Bushnell MSU 2024 Exam Questions with Correct Answers How long does the sunspot cycle last, on average? - Answer -about 11 years The vibrations of the Sun reveal information about - Answer -the interior structure of the sun True or False? The most abundant element in the Sun is helium. - Answer -False What is it about the Sun's corona that astronomers don't understand? - Answer -The corona is much hotter than layers of the Sun that are closer to the solar interior. ...

1) The rotation curve of the Milky Way suggests that the majority of the mass of the Milky Way lies farther out than the Sun's orbit. A) True B) False 1) 2) Which of the following best describes the evolutionary track followed on the H-R diagram for the most massive stars (before the star undergoes a Type II supernova)? A) horizontally right, then forms a clockwise loop B) horizontally right, diagonally to lower left, then horizontally right C) diagonally to lower right, then vertical,...

Test Bank for Foundations of Astronomy, 14e 14th Edition by Michael A. Seeds, Dana Backman. Full Chapters test bank included Part 1: Exploring the Sky Chapter 1: Here and Now 1-1 Where Are We? 1-2 When Is Now? 1-3 Why Study Astronomy? Chapter 2: A User's Guide to the Sky 2-1 Stars and Constellations 2-2 The Sky and Celestial Motions 2-3 Sun and Planets 2-4 Astronomical Influences on Earth's Climate Chapter 3: Moon Phases and Eclipses 3-1 The Changeable Moon 3-2 Lunar Eclipses...

PHSC 121 Exam Questions All Correctly Answered Why are most of the constellations that were invented in modern times composed of faint stars or located in the southern sky? - Answer -Faint stars or stars in the southern sky were not visible to early astronomers observing from northern latitudes How does the Greek letter designation of a star give you clues both to its location and its apparent brightness? - Answer -The brightest star in a constellation is usually designated as Alpha, the s...

PHSC 121 STUDY GUIDE 2024. Why are most of the constellations that were invented in modern times composed of faint stars or located in the southern sky? - CORRECT ANSWER Faint stars or stars in the southern sky were not visible to early astronomers observing from northern latitudes How does the Greek letter designation of a star give you clues both to its location and its apparent brightness? - CORRECT ANSWER The brightest star in a constellation is usually designated as Alpha, the secon...

Science Bowl Astronomy Exam Questions With Complete Solutions (Verified And Updated) A solar eclipse can only occur at a: A. full moon B. new moon C. ½ gibbous moon D. ¼ gibbous moon - answerAnswer: B Which of the following constellations cannot be seen in the summer sky of the northern hemisphere? A. Libra B. Orion C. Ursa Major D. Cygnus - answerAnswer: B What percent of stars in the sky that appear to be single stars are actually binary stars: A. about 90% B. about 50% C. about 20 %...

Astro 7n unit 3 quizzes What is the general result of the proton proton chain - correct answer 4 H -> He + energy + other products The corona of the sun - correct answer is visible during a solar eclipse In the Convective zone of the sun - correct answer columns of hot gas rise, cool, and descend What part of the sun do we typically see? - correct answer photosphere In nuclear fusion, energy is produced because: - correct answer the mass of the reacting chemicals is larger than t...

1) The Hertzsprung-Russell Diagram plots ________ against the spectral type or temperature. A) brightness or apparent magnitude B) mass C) distance D) size or density E) luminosity or absolute magnitude 1) 2) Which event marks the birth of a star? A) formation of the planetary nebula B) collapse of an interstellar cloud C) formation of a photosphere D) instability in an interstellar cloud E) fusion of hydrogen atoms into helium atoms 2) 3) Dr. Smith believes that the Hubble constan...

Diamond Essentials Final Exam Questions and Correct Answers Part. 2, With Complete Verified Solution. ____ is an important factor in diamond jewelry sales. Romance Diamond is a mineral made of a single element: ____ Carbon A diamond's value is based on its own unique combination of the ____ Four Cs ____ normally have a bigger impact on a diamond's beauty and value than blemishes Inclusions Diamond is the most ____ gemstone Durable Diamonds are expensive because they're ____ and c...