AST 111 EXAM 1 UPDATED ACTUAL QUESTIONS AND CORRECT ANSWERS

AST 111 EXAM 1 UPDATED ACTUAL QUESTIONS AND
CORRECT ANSWERS

Question:
How many miles are between the Earth and the Sun?
Answer:
93 million

Question:
How big is a light year?
Answer:
9.3x10¹² km/s

Question:
How many miles are in a light year?
Answer:
6 trillion miles/1 light year

Question:
How many recognized constellations are there?
Answer:
88

Question:
True or False: Every star is a part of a constellation
Answer:
True

Question:
What is a constellation?
Answer:
A shape in the night sky

Question:
How long is written human history?
Answer:
6,000 years

Question:
What are the angular sizes of the Sun? the Moon?
Answer:
1/2°

Question:
How do you estimate angular sizes/distances?
Answer:
Your outstretched hand

, Question:
How many arcminutes are in one degree?
Answer:
60'

Question:
How many arcseconds are in 60' arcminutes?
Answer:
60"

Question:
What is a meridian?
Answer:
An imaginary line that runs overhead from north to south; highest spot the Sun can reach in our sky

Question:
What is a zenith?
Answer:
The point directly overhead (90 degrees straight up from any direction

Question:
What does it mean when a star is circumpolar?
Answer:
The star never sets or rises

Question:
True of False: Everything is circumpolar on the celestial poles.
Answer:
True

Question:
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

Question:
What causes the rise and set of stars?
Answer:
The rotation of the Earth

Question:
True or False: The Sun is NEVER a part of constellations.
Answer:
False; the Sun is ALWAYS in a constellation.