Review Quiz Chapter 2 Observing the Sky

The point in the sky directly above your head at any given time is called the 

• celestial pole

• horizon point

• zenith

• top spot

From one horizon to the opposite horizon, the sky takes up how much angular distance?

• 90 degrees

• 360 degrees

• 180 degrees

• 100 degrees

The celestial sphere turns once around each day because

• the Earth spins on its axis once each day.

• the Earth is going around the Sun.

• the phases of the Moon.

• everything in the universe turns around the Earth.

The south celestial pole and the north celestial pole lie in the sky directly above 

• the Earth's equator.

• the observer's zenith.

• the ecliptic.

• the Earth's axis.

On the celestial sphere, halfway between the celestial poles lies the 

• zenith for all observers.

• celestial equator.

• horizon.

• path of the Sun on any given day.

From a city in the U.S., where in the sky would you look to see a star that is not turning with the motion of the sky in the course of a night?

• on your horizon.

• at your zenith.

• on the celestial equator.

• at the north celestial pole.

In the Northern Hemisphere, the altitude (height in degrees above the horizon) of the North Star is always roughly equal to the 

• longitude of the observer.

• altitude of the Sun.

• latitude of the observer.

• tilt of the Earth's axis.

Someone who observes the sky every clear night in Boston for many years will NEVER get to see:

• the south circumpolar zone.

• the north celestial pole.

• the observer's zenith point.

• the 41 degrees W longitude great circle.

The star that is currently closest to the North Celestial Pole is 

• Arcturus

• Betelgeuse

• Polaris

• Rigel

As seen from the continental United States, the Big and Little Dipper  

• are below the horizon throughout the year.

• are at the zenith throughout the year,

• are on the celestial equator throughout the year.

• are in the north circumpolar zone throughout the year