On which day of the year does the Sun reach the greatest altitude at solar noon in New York City?

• June 21

• September 23

• April 21

• December 21

A student in New York State looked toward

the eastern horizon to observe sunrise at three different times during the year. The student drew the following diagram that shows the positions of sunrise, A, B, and C, during this one-year period. Which list correctly pairs the location of sunrise to the time of the year?

• A-June 21

  B-March 21

  C-December 21

• A-March 21

  B-June 21

  C-December 21

• A-December 21

  B-March 21

  C-June 21

• A-June 21

  B-December 21

  C-March 21

What is the time in New York City when it is noon in Denver? (The shading represents time zones.)

• 10 am

• noon

• 2 pm

• 3 pm

An imaginary dome of the sky onto which all celestial objects such as stars, moons and planets can be plotted.

• Sun

• Celestial Sphere

• Apparent Motion

• Real Motion

The point directly over an observer's head.

• Apparent Motion

• Celestial Sphere

• Real motion

• Zenith

How a celestial object seems to move.

• Real motion

• Rotation

• Revolution

• Apparent motion

Height of a celestial object above the horizon measured in degrees.

• Altitude

• Height

• Zenith

• Polaris

This is the lowest altitude that an object can have to an observer.

• 90

• 3

• 0

• -1

The highest point the Sun can be in the sky.

• Sunrise

• Sunset

• Solar noon

• Midnight

This is the highest altitude an object to an observer.

• 0

• 1

• 100

• 90