Exam 2: Users Guide to the Sky: Patterns and Cycles

What is apparent solar time?

If you were on the Moon during a total lunar eclipse, the Sun would be hidden behind the Earth.

What is the approximate latitude of the observer in the diagram?

If you lived on the near side of the Moon, how often would the Earth set below your horizon?

Which of the following definitions best describes a constellation?

If the apparent visual magnitude of a star is 7.3, what does this tell us about the brightness of the star?

What is the ecliptic?

If an observer travels north, toward higher latitudes, how does the number of circumpolar stars that he or she sees in the sky change?

A third magnitude star is three times brighter than a first magnitude star.

The umbra of the Moon's shadow is the region from which no part of the photosphere is visible.

Which of the following constellations is visible year-round in most of Canada?

Where is the zenith for an observer standing at a point on the Earth's equator?

How does the Moon's appearance change during a total lunar eclipse?

Which event could occur about two weeks after a total lunar eclipse?

The star Vega has an apparent visual magnitude of 0.03 and the star HR 4374 has an apparent visual magnitude of 4.87. It has been determined that both stars are at the same distance from the Earth. What does this information tell us about the two stars?

If the perihelion of the Earth was significantly closer to the Sun than is currently the case, what would be the probable effect on the climate of the Southern Hemisphere?

The third quarter Moon rises at noon.

Refer to Table 2-1. Which star in the table would appear brightest to an observer on Earth?

On the vernal equinox (March 21), where is the Sun on the celestial sphere?

How far, and in what direction, does the Sun appear to move on the celestial sphere per day? Stopped here