Question 1

A scientific model is a mental conception that provides a framework that helps us think about some aspect of nature.

Accepted Answer

A) True 
 B)False

Question 2

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

Accepted Answer

A) True 
 B)False

Question 3

If you are at the South Pole and are standing straight then your head points up to nadir and your feet point down to zenith.

Accepted Answer

A) True 
 B)False

Question 4

How much of the sky is north of the celestial equator

Accepted Answer

A) less than one-half, because of the tilt of the equator to the ecliptic plane 
B) more than one-half, because of the precession of the poles 
C) exactly one-half 
D) all of the night sky 
A) less than one-half, because of the tilt of the equator to the ecliptic plane 
B) more than one-half, because of the precession of the poles 
C) exactly one-half 
D) all of the night sky

Question 5

a) Explain which star is apparently brighter to you as viewed from Earth on a clear night, a star with a negative value or a star with a positive value. b) If star A has an apparent visual magnitude that is more negative than star B, which is the brighter star

Accepted Answer

a) The negative star is the ap

Question 6

Describe the path that a star on the celestial equator follows from the time it rises until it sets for a person at a latitude of 60° N and a person at the equator.

Accepted Answer

A star on the celestial equato

Question 7

Star A has an apparent visual magnitude of 13.4 and star B has an apparent visual magnitude of 15.4. Star A is ____ than star B.

Accepted Answer

A) 2 times fainter 
B) 2 times brighter 
C) 6.3 times fainter 
D) 6.3 times brighter 
E) 29.8 times fainter 
A) 2 times fainter 
B) 2 times brighter 
C) 6.3 times fainter 
D) 6.3 times brighter 
E) 29.8 times fainter

Question 8

You live at a latitude of 28° N. What is the angle between the northern horizon and the north celestial pole

Accepted Answer

A) 62° 
B) 28° 
C) 40° 
D) 23.4° 
E) 5° 
A) 62° 
B) 28° 
C) 40° 
D) 23.4° 
E) 5°

Question 9

A unit of angular diameter could be meters.

Accepted Answer

A) True 
 B)False

Question 10

Which of the following is ordered correctly from smallest to largest

Accepted Answer

A) arc minute, arc second, degree 
B) degree, arc minute, arc second 
C) arc minute, degree, arc second 
D) arc second, arc minute, degree 
A) arc minute, arc second, degree 
B) degree, arc minute, arc second 
C) arc minute, degree, arc second 
D) arc second, arc minute, degree

Question 11

Earth's rotation axis is approaching Polaris today.

Accepted Answer

A) True 
 B)False

Question 12

The magnitude scale

Accepted Answer

A) originated just after the telescope was invented. 
B) can be used to indicate the apparent intensity of a celestial object. 
C) was devised by Galileo. 
D) is no longer used today. 
E) was used to determine the rate of precession. 
A) originated just after the telescope was invented. 
B) can be used to indicate the apparent intensity of a celestial object. 
C) was devised by Galileo. 
D) is no longer used today. 
E) was used to determine the rate of precession.

Question 13

The celestial equator is

Accepted Answer

A) a line around the sky directly above Earth's equator. 
B) the dividing line between the north and south celestial hemispheres. 
C) the path that the Sun appears to follow on the celestial sphere as Earth orbits the Sun. 
D) a line around the sky directly above the Earth's equator and the dividing line between the north and south celestial hemispheres. 
E) a line around the sky directly above Earth's equator and the dividing line between the north and south celestial hemispheres. 
A) a line around the sky directly above Earth's equator. 
B) the dividing line between the north and south celestial hemispheres. 
C) the path that the Sun appears to follow on the celestial sphere as Earth orbits the Sun. 
D) a line around the sky directly above the Earth's equator and the dividing line between the north and south celestial hemispheres. 
E) a line around the sky directly above Earth's equator and the dividing line between the north and south celestial hemispheres.

Question 14

Polaris has always been the star nearest the north celestial pole.

Accepted Answer

A) True 
 B)False

Question 15

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

Accepted Answer

A) straight north 
B) straight east 
C) straight south 
D) straight west 
E) straight up, directly overhead 
A) straight north 
B) straight east 
C) straight south 
D) straight west 
E) straight up, directly overhead

Question 16

Earth's rotation axis ____________________ slowly so that in a few thousand years Polaris will no longer be the North Star.

Accepted Answer

The answer of Earth's rotation axis ____________________ slowly so that...

Question 17

If you were standing on the Earth's equator, which of the following in the sky would pass through your zenith during the entire day (24 hours)

Accepted Answer

A) the north celestial pole 
B) the south celestial pole 
C) the celestial equator 
D) the nadir 
A) the north celestial pole 
B) the south celestial pole 
C) the celestial equator 
D) the nadir

Question 18

The apparent visual magnitude of a star is 7.3. This tells us that the star is

Accepted Answer

A) one of the brighter stars in the sky. 
B) bright enough that it would be visible even during the day. 
C) not visible with the unaided eye. 
D) very far from Earth. 
E) very close to Earth. 
A) one of the brighter stars in the sky. 
B) bright enough that it would be visible even during the day. 
C) not visible with the unaided eye. 
D) very far from Earth. 
E) very close to Earth.

Question 19

An observer at Earth's geographic north pole would find _______

Accepted Answer

A) the celestial equator passing at 45 degrees above the northern horizon. 
B) the celestial equator passing at 45 degrees above the southern horizon. 
C) that the celestial equator coincides with the horizon. 
D) the celestial equator passing directly overhead. 
E) None of the other choices are true. 
A) the celestial equator passing at 45 degrees above the northern horizon. 
B) the celestial equator passing at 45 degrees above the southern horizon. 
C) that the celestial equator coincides with the horizon. 
D) the celestial equator passing directly overhead. 
E) None of the other choices are true.

Question 20

A star is given a designation of Alpha Draconis and thus apparently it is the _______________ in the constellation.

Accepted Answer

A) brightest 
B) second brightest 
C) third brightest 
D) fourth brightest 
A) brightest 
B) second brightest 
C) third brightest 
D) fourth brightest

A scientific model is a mental conception that provides a framework that helps us think about some aspect of nature.

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

If you are at the South Pole and are standing straight then your head points up to nadir and your feet point down to zenith.

How much of the sky is north of the celestial equator

a) Explain which star is apparently brighter to you as viewed from Earth on a clear night, a star with a negative value or a star with a positive value. b) If star A has an apparent visual magnitude that is more negative than star B, which is the brighter star

Describe the path that a star on the celestial equator follows from the time it rises until it sets for a person at a latitude of 60° N and a person at the equator.

Star A has an apparent visual magnitude of 13.4 and star B has an apparent visual magnitude of 15.4. Star A is ____ than star B.

You live at a latitude of 28° N. What is the angle between the northern horizon and the north celestial pole

A unit of angular diameter could be meters.

Which of the following is ordered correctly from smallest to largest

Earth's rotation axis is approaching Polaris today.

The magnitude scale

The celestial equator is

Polaris has always been the star nearest the north celestial pole.

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

Earth's rotation axis ____________________ slowly so that in a few thousand years Polaris will no longer be the North Star.

If you were standing on the Earth's equator, which of the following in the sky would pass through your zenith during the entire day (24 hours)

The apparent visual magnitude of a star is 7.3. This tells us that the star is

An observer at Earth's geographic north pole would find _______

A star is given a designation of Alpha Draconis and thus apparently it is the _______________ in the constellation.

Here and Now

Cycles of the Sun and Moon

The Origin of Modern Astronomy

Light and Telescopes

Atoms and Spectra

The Sun

The Family of Stars

The Formation and Structure of Stars

The Deaths of Stars

Neutron Stars and Black Holes

The Milky Way Galaxy

Galaxies: Normal and Active

Modern Cosmology

The Origin of the Solar System

Earth and Moon: Bases for Comparative Planetology

Mercury, Venus, and Mars

The Outer Solar System

Meteorites, Asteroids, and Comets

Astrobiology: Life on Other Worlds

Filters

Exam 2: A Users Guide to the Sky

A scientific model is a mental conception that provides a framework that helps us think about some aspect of nature.

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

If you are at the South Pole and are standing straight then your head points up to nadir and your feet point down to zenith.

How much of the sky is north of the celestial equator

a) Explain which star is apparently brighter to you as viewed from Earth on a clear night, a star with a negative value or a star with a positive value. b) If star A has an apparent visual magnitude that is more negative than star B, which is the brighter star

Describe the path that a star on the celestial equator follows from the time it rises until it sets for a person at a latitude of 60° N and a person at the equator.

Star A has an apparent visual magnitude of 13.4 and star B has an apparent visual magnitude of 15.4. Star A is ____ than star B.

You live at a latitude of 28° N. What is the angle between the northern horizon and the north celestial pole

A unit of angular diameter could be meters.

Which of the following is ordered correctly from smallest to largest

Earth's rotation axis is approaching Polaris today.

The magnitude scale

The celestial equator is

Polaris has always been the star nearest the north celestial pole.

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

Earth's rotation axis ____________________ slowly so that in a few thousand years Polaris will no longer be the North Star.

If you were standing on the Earth's equator, which of the following in the sky would pass through your zenith during the entire day (24 hours)

The apparent visual magnitude of a star is 7.3. This tells us that the star is

An observer at Earth's geographic north pole would find _______

A star is given a designation of Alpha Draconis and thus apparently it is the _______________ in the constellation.

Here and Now

Cycles of the Sun and Moon

The Origin of Modern Astronomy

Light and Telescopes

Atoms and Spectra

The Sun

The Family of Stars

The Formation and Structure of Stars

The Deaths of Stars

Neutron Stars and Black Holes

The Milky Way Galaxy

Galaxies: Normal and Active

Modern Cosmology

The Origin of the Solar System

Earth and Moon: Bases for Comparative Planetology

Mercury, Venus, and Mars

The Outer Solar System

Meteorites, Asteroids, and Comets

Astrobiology: Life on Other Worlds

Filters