Ose Sky and Space

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

• zenith
• azimuth
• ecliptic
• meridian

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 _____ 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

Why does the sun appear to move across the sky over the course of a day?

• The Earth is stationary and the sun revolves around it.
• The Sun is stationary and the Earth rotates upon its axis.
• The Sun is stationary and the Earth revolves around it.
• Both the Sun and the Earth are revolving around each other.

If the Earth's north pole is considered "up", does the Earth rotate clockwise or counterclockwise?

• Clockwise
• Counterclockwise

The angular distance of a celestial object above the horizon

• Altitude
• Latitude
• Longitude
• Angle of Isolation

When we watch the nighttime sky, we find that

• the stars and constellations remain fixed in our sky, not rising or setting in a time as short as one night because they are so far away.
• most stars and constellations slowly rise in the east and set in the west.
• most stars and constellations slowly rise in the west and set in the east.
• all stars and constellations reach their highest point in the sky at midnight.

If you follow a line through the "pointer stars" (the two stars in the bowl of the Big Dipper farthest from the handle) away from the open end of the dipper, the first moderately bright star you come to is

• Polaris, the North Star.
• Spica, in Virgo.
• Arcturus, in Bootes.
• Vega, in Lyra.

Where would you have to be in order to see the north celestial pole directly over your head (i.e., in your zenith)?

• On the equator
• About 4 degrees of the Magnetic North Pole of the Earth
• At a position about 1 degree away from the South Pole, to account for precession
• At the South Pole

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

• analemma
• azimuth
• zenith
• ecliptic