Astronomy; Celestial Sphere Exam

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.

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

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.

• An imaginary line running north-south through the zenith

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

• Rigel
• Vega
• Polaris
• Orion

How much of the celestial sphere can an observer on Earth see at one time?

• less than half

• exactly half

• more than half

What is the Sun's apparent path through the celestial sphere called?

• Meridian

• Declination

• Ecliptic

• Right Ascension

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

What are the units for right ascension?

• degrees
• hours
• arc milliseconds
• kilometers

Mythical Zodiac figures, which are associated with peoples horoscopes, are where in the sky?

• they exist all across the whole sky, from north to south

• they all have the North star as a common star in each of their constellations

• in the north hemisphere and can only be observed if north of the equator

• along the same band across the sky that the sun, moon and planets travel.

The 88 official patterns created by stars are known as ---

• Asterisms

• Galaxy

• Constellations

• Zenith