The Coordinate System to Locate Objects in the Sky

The _____ is the huge imaginary sphere on which all objects in the sky were once considered to be attached.

• equator
• celestial sphere
• ecliptic
• zenith

The line that separates the sky in half from North to South

• zenith

• azimuth

• equator

• meridian

The _____ is where the Earth and sky appear to meet in the far distance and the _____ is the point on the celestial sphere directly over the head of the observer.

• horizon, azimuth
• altitude, zenith
• horizon, zenith
• altitude, azimuth

The angular distance of a celestial object above the horizon

• Altitude

• Latitude

• Longitude

• Azimuth

For any observer the _____ is the point of the sky directly overhead.

• altitude

• azimuth

• zenith

• ecliptic

is the point where the earth appears to meet the sky. You can never actually reach that point as it moves as you do (sorry flat earthers!)

• Lattitude

• Longitude

• Horizon

• Zeinth

angular distance above the horizon (especially of a celestial object)

• Horizon
• Vertical Drop
• Altitude
• Altimeter

Sally is facing south on March 21 and is trying to find the coordinates of the Sun as it sets. Which of the following coordinates most likely describe the location of the Sun?

• Altitude 85° and azimuth 90°

• Altitude 5° and azimuth 270°

• Altitude 5° and azimuth 90°

• Altitude 85° and azimuth 270°

Which direction is missing?

• North

• East

• Northwest

• South

• Northeast

This tool shows the cardinal directions 

• astrolabe
• compass
• sextant
• telescope