Exam 2: A Users Guide to the Sky

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

Star A has an apparent visual magnitude of 6.3 and star B has an apparent visual magnitude of 5.3. Star A is _________ times (fainter or brighter) than star B.

Taurus is a summer constellation (i.e., you see the constellation in summer but not in winter).

____ is the brightest star in the constellation of Ursa Majoris.

The magnitude difference between Hubble Space Telescope apparent visual magnitude limit and the Sun's apparent visual magnitude is about 55.

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

A third apparent visual magnitude star is brighter than a fifth apparent visual magnitude star.

Which of the following is an example of a scientific model

In the designation α Canis Majoris, which part refers to the star and which part refers to the constellation

The constellation of Orion is currently visible in the evenings in January. Precession will not affect this and Orion will still be visible in January 13,000 years from now.

What advantage is there in referring to a star by its Greek-letter designation and constellation name rather using its traditional name

Most star names, such as Aldebaran and Betelgeuse, are___ in origin.

The ____ of an object can be measured in degrees.

The approximate intensity ratio between two stars is 100. Thus the apparent visual magnitude difference between the stars is ______________.

In contrast to Ursa Major, the Big Dipper is not a(n) ___ but is instead a(n) ______

The subscript ______ stands for ________ to remind you that only information on visible light is given.

A(n) ____ is 1/60th of a minute of arc.

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

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

The celestial sphere is a scientific model.