Cepheid period - Study guides, Class notes & Summaries
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GIZMOS Student Exploration: Big Bang Theory – Hubble’s Law 2023
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GIZMOS Student Exploration: Big Bang Theory – Hubble’s Law 2023. Collect data: Locate and select the yellow Cepheid variable star (A-091) in the lower left 
section of the Andromeda Galaxy. Click the Collect data button. You will see a graph of the 
apparent brightness of the star over time. 
A. How does the star’s apparent brightness change over time? It decreases, then increases, and 
decreases again. Its like a pattern. 
B. Turn on Show time probes. Set the left probe at the first brigh...
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ASTR 1010 Final Vanderbilt; Questions And Answers
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ASTR 1010 Final Vanderbilt; Questions And 
Answers 
radioactive decay - answer -the process by which radioactive isotope breaks down 
into a stable isotope of same/another element; each half-life leaves half of existing 
population of radioactive isotope 
star cluster + special properties - answer -gravitationally bound stars formed from 
the same gas cloud; all about same dstnc from Earth, all about same age; open 
clusters have countable stars, globular clusters have too many to count (st...
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ASTRO 205 Multiple Exam Questions and Answers Rated A.
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ASTRO 205 Multiple Exam Questions 
and Answers Rated A.
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GIZMOS Student Exploration: Big Bang Theory – Hubble’s Law
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GIZMOS Student Exploration: Big Bang Theory – Hubble’s Law. absolute brightness, absorption spectrum, apparent brightness, Big Bang theory, 
blueshift, Cepheid variable, Doppler shift, Hubble constant, Hubble’s law, luminosity, 
megaparsec, period, redshift, spectrograph 
Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 
Standing by the side of a lonely highway at night, you see two motorcycle headlights, one in 
each direction. The headlight on your left appears brighter than ...
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Astronomy 110 Final Exam
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How many constellations are there? - 88 constellations 
 
lookback time - The time elapsed between when we detect the light here on Earth and when it was originally emitted by the source, is known as the 'lookback time'. 
 
Center of Milky Way - The Galactic Center (or Galactic Centre) is the rotational center of the Milky Way galaxy; it is a supermassive black hole of 4.100 ± 0.034 million solar masses, which powers the compact radio source Sagittarius A. 
 
Period- Luminosity relation - In ...
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Science Bowl Astronomy Exam Questions With Complete Solutions (Verified And Updated)
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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 %...
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ASTRO test 4 with 100% correct answers 2024.
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the speed of light is about ___________________. - correct answer 1 ly/year 
 
Imagine that you travel the speed of light. Starting from earth, how long would it take you to travel to the center of the milky way galaxy - correct answer about 28,000 years 
 
the galactic center lies in the direction of which constellation - correct answer sagittarius 
 
we have evidence that a black hole lays in the very center of the Milky Way galaxy. what is the mass of this black hole - correct answer 4 millio...
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GIZMOS Student Exploration; Big Bang Theory | Hubble’s Law 2023
- Exam (elaborations) • 13 pages • 2023
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GIZMOS Student Exploration; Big Bang Theory | Hubble’s Law 2023. Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 
Standing by the side of a lonely highway at night, you see two motorcycle headlights, one in 
each direction. The headlight on your left appears brighter than the one on your right. 
1. If the headlights are equally bright, which motorcycle is closer? The one on the left side 
Explain: If it is brighter than that means its going to be closer because the light particle...
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ASTR 205 Quiz 2
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The first stars to form in our galaxy - had highly elliptical orbits 
The most likely theories to explain the spiral structure of spiral galaxies are - selfsustaining 
star formation and the density wave theory. 
A Type II Cepheid has been located in a distant globular cluster with a period of 10 
days. What is the star's absolute magnitude? - −1 
Besides the obvious difference in shape, elliptical galaxies differ from spirals by - 
containing little gas and dust, and few, if any, newly for...
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Exam 3A - Binghamton University ASTR 114 | Latest 2023-2024
- Exam (elaborations) • 9 pages • 2023
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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,...
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