Celestial sphere Study guides, Class notes & Summaries
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![Astro 101 - Exam 1 UMich Questions & Answers 2023/2024](/docpics/4065448/6583a63d2beae_4065448_121_171.jpeg)
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Astro 101 - Exam 1 UMich Questions & Answers 2023/2024
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Astro 101 - Exam 1 UMich Questions & Answers 2023/2024 
 
 
what is our planet in the solar system - ANSWER-part of the solar system, in the milky way galaxy, in local group of galaxies, in local supercluster 
 
how did we come to be - ANSWER-the Big Bang which produced hydrogen and helium 
 
where did elements come from - ANSWER-the big bang produced H and He, which are the base of other elements constructed in stars 
 
how old are we in comparison to the universe - ANSWER-human civilization is...
![PHYS 284 Final Chapter 2 exam 2024 with 100% correct answers](/docpics/4869426/66070665cc9ad_4869426_121_171.jpeg)
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PHYS 284 Final Chapter 2 exam 2024 with 100% correct answers
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1) How many stars can you see with your naked eye on a clear, moonless night from a dark location? 
A) fewer than a thousand 
B) a few thousand 
C) about ten thousand 
D) about a hundred thousand 
E) more than you could count in your lifetime - correct answer B) a few thousand 
 
2) Which of the following best describes the modern definition of a constellation? 
A) a region of the celestial sphere 
B) a pattern of bright stars in the sky 
C) a Greek mythological figure 
D) a collection of stars ...
![Geodesy || with 100% Correct Answers.](/docpics/5578429/6663ffa4a8ec6_5578429_121_171.jpeg)
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Geodesy || with 100% Correct Answers.
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Celestial Sphere correct answers For purposes of surveying, an assumption is made that the stars and other heavenly bodies are all fixed within a gigantic sphere with an infinite radius whose center is the Earth. This sphere is called the ________. 
 
360 degrees 59.14' per 24 hours correct answers The speed of rotation of the celestial sphere is _______, thus making slightly more than one revolution per day. 
 
Angular relations correct answers Are measured on earth between celestial bodies or...
![ASTR 101: Exam 1 Questions with Complete Solutions](/docpics/5344705/66483afd54f26_5344705_121_171.jpeg)
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ASTR 101: Exam 1 Questions with Complete Solutions
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Constellations Correct Answer-Recognizable patterns of stars in the sky (big dipper, orions belt) 
Makes locating stars easier. 
The official borders were set in 1928 by the International Astronomical Union (IAU). 
 
How many constellations are there? Correct Answer-88 
 
Celestial sphere Correct Answer-our view of the night sky; an artificial sky map created by astronomers that applied a coordinate system to it, analogous to the coordinate system of north-south latitude and east-west longitude ...
![ASTR 101 Practice – Uvic Questions with Complete Solutions](/docpics/5344779/66483e8084016_5344779_121_171.jpeg)
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ASTR 101 Practice – Uvic Questions with Complete Solutions
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Even though it is not realistic, why is the celestial sphere model useful? Correct Answer-Describes the locations of things "on" the sky. 
 
Declination is measured from the _________ to the __________ Correct Answer-celestial equator; celestial poles 
 
How do you measure right ascension? Correct Answer-Measured from "First point in Aries" around the celestial equator 
 
Latitude is to declination as longitude is to __________ Correct Answer-Right Ascension 
 
Why are the zodiacal constella...
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ASTR 101 Questions with complete solutions
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astronomy Correct Answer-the oldest natural science 
 
how many constellations are there over the celestial sphere? Correct Answer-88 
 
Ecliptic Correct Answer-apparent path of the Sun across the Celestial Sphere. 
 
Constellation Correct Answer-a region in the sky useful for mapping the sky. 
 
The brightest stars in a constellation Correct Answer-may actually be quite far away from each other 
 
zentih Correct Answer-the point directly overhead (altitude= 90) 
 
horizon Correct Answer-all poi...
![Test Bank For Explorations: An Introduction to Astronomy 9th Edition by Thomas (Arny)](/docpics/5637118/666c0a5993cd4_5637118_121_171.jpeg)
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Test Bank For Explorations: An Introduction to Astronomy 9th Edition by Thomas (Arny)
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Test Bank For Explorations: An Introduction to Astronomy 9th Edition by Thomas (Arny) Directly above Earth's equator lies the ________ in the sky. 
A) North Celestial Pole 
B) South Celestial Pole 
C) Celestial equator 
D) ecliptic 
Answer: C 
Difficulty: 1 Easy 
Section: 01.01 
Topic: Locating Objects in the Sky 
Bloom's: 1. Remember 
Gradable: automatic 
Subtopic: Celestial Sphere Model 
2) All celestial objects rise in the east and set in the west because 
A) Earth is rotating from east to ...
![Surveying Astronomical Observations || All Questions Answered Correctly.](/docpics/5578620/666403a5a140c_5578620_121_171.jpeg)
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Surveying Astronomical Observations || All Questions Answered Correctly.
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Celestial Sphere correct answers a sphere with an infinite radius whose center is the earth 
 
360°59.14' or 24 hours, 1 rev a day correct answers speed of rotation of the celestial sphere 
 
Celestial Poles correct answers are the points on the surface of the celestial sphere pierced by the extension of the earth's polar axis 
 
Celestial Axis correct answers is the prolongation of the earth's polar axis 
 
Zenith correct answers is the point where the plumb line at the place of observation...
![Astro 1 PSU Final Exam | 150 Questions with 100% Correct Answers | Verified | Latest Update 2024](/docpics/4150869/65983220ca8cf_4150869_121_171.jpeg)
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Astro 1 PSU Final Exam | 150 Questions with 100% Correct Answers | Verified | Latest Update 2024
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Why do we see the Moon appear to go through phases as seen from Earth? 
A. The Moon reflects "Earthshine", so it depends on how much light from the Earth is hitting the Moon 
B. As the Moon rotates, it presents a different phase to us over the course of its "day". 
C. Depending on where the Moon is along its orbit, we see different amounts of its illuminated side 
D. The Earth's shadow blocks out part of the Moon from time to time - C. Depending on where the 
Moon is along its orbit, we see...
![AST 101 EXAM 1 QUESTIONS AND ANSWERS 100% PASS](/docpics/4019404/657a303808dbc_4019404_121_171.jpeg)
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AST 101 EXAM 1 QUESTIONS AND ANSWERS 100% PASS
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AST 101 EXAM 1 QUESTIONS AND ANSWERS 100% PASS the average distance from the earth to the sun is what unit? 1 astronomical unit 
the distance light travels in a year 1 light year 
the andromeda galaxy is how many light years away 2,000,000 ly 
the stars that appear to lie on a dome above us is the ____ _______ the celestial sphere 
the stars appear to be ____ on the celestial sphere fixed 
the earth is what in the celestial sphere model? the center of the universe 
what part of the celestial sph...
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