Distance Measurement in the Solar System

What is the visual effect when you switch eyes in the parallax example?

• The thumb disappears

• The thumb appears to move

• The thumb changes color

• The thumb stays still

How many arcminutes are in a degree?

• 60

• 30

• 90

• 120

Which distance is larger: 1 astronomical unit or 1 light-year?

• 1 AU

• 1 LY

Which of the following is a correct representation of a light year in kilometers?

• 9,460,000,000 km

• 94,600,000,000 km

• 946,000,000,000 km

• 9,460,000,000,000 km

The average distance between the earth and the sun is the 

• astronomical unit 
• Light year

The apparent shift in the position of an object when viewed from different locations is called 

• Parallelogram 
• Parallax 

What is the term for the angle used to measure the apparent shift of a star?

• Parallax angle

• Inclination angle

• Rotation angle

• Revolution angle

In the context of light years, what does "flat, empty space" refer to?

• A vacuum with no matter

• A space filled with air

• A space filled with water

• A space filled with dust

What is the effect of Earth's orbit on the apparent position of nearby stars?

• It has no effect

• It makes stars brighter

• It causes stars to appear to move

• It causes stars to change color

How many light years are in a parsec?

• 9.46 light years

• 5.88 light years

• 3.26 light years

• 1.29 light years