Astronomy ch 2

What do we call the line that the sun traces across the celestial sphere?

• The celestial equator
• Ecliptic
• The Mason-Dixon line

What is the celestial equator?

• A band of constellations through which the planets and sun appear to move.
• The line that the sun traces across the celestial sphere.
• An imaginary line in the sky directly above Earth's equator.

A zenith is________.

• The point directly below someone looking down.
• The point directly above someone looking up.
• The area of land the person is standing on within the celestial sphere.

What two solar events happen at the equator every year?

• Equinoxes

• Solstices

• Eclipses

• None

What is the sun's apparent path on the celestial sphere called?

• Galactic Plain

• Precession of the Equinoxes

• Plains of Abraham

• Ecliptic Plane

What two seasons; beginnings are marked by the equinoxes?

• Winter

• Spring

• Summer

• Fall

What two seasons; beginnings are marked by the solstices?

• Winter

• Spring

• Summer

• Fall

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

• Arctic & Antarctic Circles
• Longitude & Latitude
• Tropics of Capricorn and Cancer
• Sonar systems

Stars and other celestial objects appear to lie on a great

• Bear

• constellations

• circumpolar

• celstial sphere

The longest and shortest days of the year are called?

• Equinoxes

• Solstices

• Leap Day

• Mondays