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AST 111 Exam 1 Practice Questions and Answers
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AST 111 Exam 1 Practice Questions and Answers How many miles are between the Earth and the Sun? - ANSWER-93 million How big is a light year? - ANSWER-9.3x10¹² km/s How many miles are in a light year? - ANSWER-6 trillion miles/1 light year How many recognized constellations are there? - ANSWE...

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  • November 3, 2024
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  • 2024/2025
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Copyright © KAYLIN 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH NOVEMBER, 2024




AST 111 Exam 1 Practice Questions and

Answers


How many miles are between the Earth and the Sun? - ANSWER✔✔-93 million


How big is a light year? - ANSWER✔✔-9.3x10¹² km/s


How many miles are in a light year? - ANSWER✔✔-6 trillion miles/1 light year


How many recognized constellations are there? - ANSWER✔✔-88


True or False: Every star is a part of a constellation - ANSWER✔✔-True


What is a constellation? - ANSWER✔✔-A shape in the night sky


How long is written human history? - ANSWER✔✔-6,000 years


What are the angular sizes of the Sun? the Moon? - ANSWER✔✔-1/2°


How do you estimate angular sizes/distances? - ANSWER✔✔-Your outstretched hand


How many arcminutes are in one degree? - ANSWER✔✔-60'


How many arcseconds are in 60' arcminutes? - ANSWER✔✔-60"


What is a meridian? - ANSWER✔✔-An imaginary line that runs overhead from north to south; highest

spot the Sun can reach in our sky


What is a zenith? - ANSWER✔✔-The point directly overhead (90 degrees straight up from any direction



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, Copyright © KAYLIN 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH NOVEMBER, 2024


What does it mean when a star is circumpolar? - ANSWER✔✔-The star never sets or rises


True of False: Everything is circumpolar on the celestial poles. - ANSWER✔✔-True


True or False: If we see a circumpolar star, we will see that area of the sky once a year. - ANSWER✔✔-

False; If there is a circumpolar star, there's an area of the sky we'll never see


What causes the rise and set of stars? - ANSWER✔✔-The rotation of the Earth


True or False: The Sun is NEVER a part of constellations. - ANSWER✔✔-False; the Sun is ALWAYS in a

constellation.


What qualifies as a solar day? - ANSWER✔✔-When the Sun goes from meridian all the way back to the

same meridian.


What qualifies as a sidereal day? - ANSWER✔✔-When a star goes from meridian all the way back to the

same meridian.


When is a constellation a part of the zodiac? When is that constellation visible? - ANSWER✔✔-When the

Sun and the constellation are at the same point in the sky and visible at a different time of year.


True or False: Sidereal days and solar days are the same length. - ANSWER✔✔-False; solar days are NOT

the same length as sidereal days because we orbit


What's longer: a solar day or a sidereal day? - ANSWER✔✔-Solar day


What is an ecliptic? - ANSWER✔✔-An imaginary line that the Moon, Sun, and planets follow through the

sky.


What causes the seasons? - ANSWER✔✔-The tilt of the Earth's axis.




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