Astronomy Coordinate Systems

The Celestial Sphere spins around two points in the sky known as the.....

• North and South Poles.
• Celestial North and Celestial South Poles.
• East and West Points of Light.
• Arctic and Antarctic Points.

What is the name of the star closest to the Celestial North Pole?

• Rigel
• Vega
• Polaris
• Orion

The Celestial Sphere's coordinates (equatorial system) are related to what Earth system of coordinates?

• Arctic & Antarctic Circles

• Longitude & Latitude

• Tropics of Capricorn and Cancer

• Sonar systems

What the celestial equivalent of "latitude?" 

• Inclination
• Left Ascension
• Right Ascension
• Declination

Degrees of declination are divided in smaller parts called...

• hours (arc hours).
• minutes (arc minutes).
• seconds (arc seconds).
• milliseconds (arc milliseconds).

Arc minutes are divided in smaller parts called...

• hours (arc hours).
• minutes (arc minutes).
• seconds (arc seconds).
• milliseconds (arc milliseconds).

What the celestial equivalent of "longitude?" 

• Inclination
• Left Ascension
• Right Ascension
• Declination

What are the units for right ascension?

• degrees
• hours
• arc milliseconds
• kilometers

Each hour of "right ascension" is divided into...

• minutes and seconds.
• degrees.
• arc degrees.
• milliseconds.

In the local sky this is the line that separates the sky in half running from North to South

• zenith

• azimuth

• ecliptic

• meridian