Cepheid period - Study guides, Class notes & Summaries
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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 form...
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Astronomy Unit 9 Exam - Questions & Answers
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Astronomy Unit 9 Exam - Questions & Answers At position A, small irregular galaxies merge to create ______. a large galaxy with a central black hole At position B, fueling of the supermassive black hole in a massive bulge produces ______. intense quasar activity At position C, mergers of large galaxies produce ______. a radio galaxy At position D, as nuclear fueling and activity winds down, ______ is observed. a normal elliptical galaxy The period-luminosity relation is critical in finding dist...
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GIZMOS Student Exploration Big Bang Theory – Hubble’s Law (Answered 2021)
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Vocabulary: absolute brightness, absorption spectrum, apparent brightness, Big Bang theory, 
blueshift, Cepheid variable, Doppler shift, Hubble constant, Hubble’s law, luminosity, 
megaparsec, period, redshift, spectrograph
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ASTR 1010 Final Vanderbilt; 100% VERIFIED (GRADED A+)
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dark energy + evidence correct answers a mysterious repulsive force that appears to be causing the expansion of the universe to accelerate 
 
Type Ia supernovae as standard candles; Hbl law says they should be moving faster there; inverse square law for light dictates that dimmer = farther; calculated dstncs to things are even farther than their redshift predicts; they are being pushed away 
 
dark matter + evidence correct answers matter (gravity, attractive force) that does not give off electr...
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GIZMOS Student Exploration: Big Bang Theory – Hubble’s Law 2021 Answered.
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GIZMOS Student 
Exploration: Big Bang 
Theory – Hubble’s Law 
2021 Answered. 
Student Exploration: Big Bang Theory – Hubble’s Law 
Vocabulary: 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 motorcycl...
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GIZMOS Student Exploration: Big Bang Theory – Hubble’s Law 2023 Student Exploration: Big Bang Theory – Hubble’s Law, GRADE A!!!
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Vocabulary: 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 the one on your right. 
 
1.	If the headlights are ...
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Astro 102 Final Exam Ultimate Study Guide 100% Correct Answers Verified Latest 2024 Version
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Astro 102 Final Exam Ultimate Study Guide | 
100% Correct Answers | Verified | Latest 
2024 Version 
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 t...
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Student Exploration: Big Bang Theory – Hubble’s Law ALL ANSWERS 100% CORRECT FALL-2021 SOLUTION GUARANTEED GRADE A+ 20222023
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Vocabulary: absolute brightness, absorption spectrum, apparent brightness, Big Bang theory, blueshift, Cepheid variable, Doppler shift, Hubble constant, Hubble’s law, luminosity, megaparsec, period, redshift, spectrograph Gizmo Warm-up In 1912, an astronomer named Henrietta Swan Leavitt studied a class of stars called Cepheid variables. These stars change from bright to dim to bright again. Her discoveries led to a method of measuring distances to other galaxies and eventually helped to suppor...
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GIZMOS 2.08 Lab Questions | Student Exploration: Big Bang Theory ;; Hubble’s Law 2021
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Vocabulary: 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 the one on your right. 
1. If the headlights are equ...
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GIZMOS Big Bang Theory – Hubble’s Law Lab Questions 2021 Answered.
- Exam (elaborations) • 13 pages • 2022
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GIZMOS Big Bang Theory – Hubble’s Law Lab Questions 2021 Answered. Vocabulary: 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 ap...
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