Exam 2: Patterns in the Skymotions of Earth

How is the observed height of Polaris above the horizon related to an observer's latitude? (Hint: Consider three cases of observers located at the equator,the North Pole,and latitude = +45°. )

If tonight the Moon is in the waxing gibbous phase,in three days the Moon will most likely be in the:

If the Earth's axis were tilted by 5°,instead of its actual tilt,how would the seasons be different than they are currently?

For an observer in Seattle,Washington,which is located at latitude = + 47°,what is the lowest possible altitude one might see the Sun on the meridian over the course of the year? Approximately what time of the day and year will this occur?

A friend takes a time-lapse picture of the sky,as shown below.What direction must your friend have been facing when the picture was taken?

As the month passes,the Moon appears to rise later in the day or night when compared to the previous day.Explain why this happens.

Consider an observer located on the equator.If the observer sees a star directly overhead at 8 P.m. ,where will that star be located in the night sky at midnight? How far above the horizon will it be or will it have set?

During which lunar phase do solar eclipses occur?

The meridian is defined as an imaginary circle on the sky on which lie the:

The Moon undergoes synchronous rotation,and as a consequence the:

What makes the equinoxes and solstices special?

The longest day of the year in the Northern Hemisphere occurs on the summer solstice.

Approximately how often do lunar eclipses occur?

A solar-powered spacecraft is traveling through the Moon's shadow.Which part(s),if any,of the Moon's shadow will cause the spacecraft to completely lose power?

During which season (in the Northern Hemisphere)could you see the Sun rising from the furthest north?

For a person living in Vancouver,Canada,at latitude of 49°,the Sun will reach a maximum height above the Southern horizon on winter solstice of

A partial lunar eclipse occurs when:

Earth revolves around the Sun in the same direction Earth spins about its axis.

Solar and lunar eclipses are rare because:

The Moon's sidereal period is 2.2 days shorter than the period during which the Moon's phases change because: