Exam 2: A Users Guide to the Sky

You live at a latitude of 73 $\degree$ N.What is the angle between the northern horizon and the north celestial pole?

At the time of the winter solstice (the start of winter)the sun is

When it is winter in the northern hemisphere,it is ____ in the southern hemisphere.

The ____ is the point on the celestial sphere directly above any observer.

An observer in the Northern Hemisphere takes a time exposure photograph of the night sky.If the illustration depicts the photograph taken by the observer,which direction was the camera pointing?

The celestial equator always passes directly overhead.

The Greeks created all the constellations.

In Brazil,the longest period of daylight occurs during the month of

You live at a latitude of 16 $\degree$ S.What is the angle between the southern horizon and the south celestial pole?

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

The apparent visual magnitude of a star is a measure of the star's

The moon and visible planets are always within a few degrees of the ecliptic.

The names of stars usually come from

What causes summer here in the northern hemisphere? In the summer,at this point

The celestial equator always crosses the horizon at the east point and west point.

A constellation must consist of a number of stars,all

How much of the night sky is north of the celestial equator?

If the Sun passes directly overhead on at least one day per year,then

Hipparchus devised the magnitude system in the late 1700's.

Seen from the northern latitudes,the star Polaris