Question 1

What is the term for the Moon when it is visible above the eastern horizon a couple of hours before sunrise?

Accepted Answer

A) the waning gibbous Moon 
B) the waxing gibbous Moon 
C) the waxing crescent Moon 
D) the waning crescent Moon 
A) the waning gibbous Moon 
B) the waxing gibbous Moon 
C) the waxing crescent Moon 
D) the waning crescent Moon D

Question 2

If the north celestial pole appears on your horizon,what is your latitude?

Accepted Answer

A) 0° 
B) 45° N 
C) 90° N 
D) 90° S 
A) 0° 
B) 45° N 
C) 90° N 
D) 90° S A

Question 3

Why does a totally eclipsed Moon glow coppery red?

Accepted Answer

A) Only red light can pass through the Earth's shadow and reach the Moon. 
B) During a lunar eclipse the Moon reflects only red light from the Sun. 
C) During a lunar eclipse the Sun is cooler than normal so its light is redder. 
D) Only red light is able to pass completely through the Earth's atmosphere and reach the Moon. 
A) Only red light can pass through the Earth's shadow and reach the Moon. 
B) During a lunar eclipse the Moon reflects only red light from the Sun. 
C) During a lunar eclipse the Sun is cooler than normal so its light is redder. 
D) Only red light is able to pass completely through the Earth's atmosphere and reach the Moon. D

Question 4

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

Accepted Answer

A) Less than half, because of the tilt of the equator to the ecliptic plane. 
B) More than half, because of the precession of the poles. 
C) Exactly half. 
D) All of the night sky. 
A) Less than half, because of the tilt of the equator to the ecliptic plane. 
B) More than half, because of the precession of the poles. 
C) Exactly half. 
D) All of the night sky.

Question 5

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?

Accepted Answer

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

Question 6

An observer in the southern 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?

Accepted Answer

A) due north 
B) due south 
C) due east 
D) due west 
A) due north 
B) due south 
C) due east 
D) due west

Question 7

Why doesn't the Earth experience a solar eclipse every month?

Accepted Answer

A) Unpredictable weather patterns obscure the Moon. 
B) The Moon always keeps its same side toward the Earth. 
C) The Moon's orbit is not aligned with the Earth's orbit. 
D) Sometimes the Moon is too far away. 
A) Unpredictable weather patterns obscure the Moon. 
B) The Moon always keeps its same side toward the Earth. 
C) The Moon's orbit is not aligned with the Earth's orbit. 
D) Sometimes the Moon is too far away.

Question 8

What information does a star's Greek-letter designation convey?

Accepted Answer

The answer of What information does a star's Greek-letter designation...

Question 9

What is the sidereal period of the Moon?

Accepted Answer

A) the period of time between one full Moon and the next 
B) the period of time for the Moon to orbit the Earth once with respect to the stars 
C) the period of time between successive eclipses at a given location on Earth 
D) the period of time from when the Moon rises until the Moon rises again the next night 
A) the period of time between one full Moon and the next 
B) the period of time for the Moon to orbit the Earth once with respect to the stars 
C) the period of time between successive eclipses at a given location on Earth 
D) the period of time from when the Moon rises until the Moon rises again the next night

Question 10

You want to observe the star Arcturus just as it crosses the meridian.If the meridian crossing happens at exactly 9:00 p.m.tonight,at what time will it occur 7 days from now,at the same location?

Accepted Answer

A) 8:32 p.m. 
B) 9:00 p.m. 
C) 9:28 p.m. 
D) 6:00 a.m. 
A) 8:32 p.m. 
B) 9:00 p.m. 
C) 9:28 p.m. 
D) 6:00 a.m.

Question 11

-The diagram shows three approximate locations of the Sun along the western horizon.Which number indicates the location of the Sun at sunset on autumnal equinox (Sept.21)for an observer at a latitude of 45° North?

Accepted Answer

A) 1 
B) 2 
C) 3 
D) The Sun will not set on the autumnal equinox at this latitude. 
A) 1 
B) 2 
C) 3 
D) The Sun will not set on the autumnal equinox at this latitude.

Question 12

When does the full Moon occur?

Accepted Answer

A) on the 15th of every month 
B) when the Moon is at right angles to the direction of the Sun 
C) when the Moon is closer to Sun than the Earth is 
D) when the Moon is directly opposite the position of the Sun 
A) on the 15th of every month 
B) when the Moon is at right angles to the direction of the Sun 
C) when the Moon is closer to Sun than the Earth is 
D) when the Moon is directly opposite the position of the Sun

Question 13

What is the term for a solar eclipse in which the Moon's umbra reaches the Earth's surface?

Accepted Answer

A) a total solar eclipse 
B) a partial solar eclipse 
C) a penumbral solar eclipse 
D) an umbral solar eclipse 
A) a total solar eclipse 
B) a partial solar eclipse 
C) a penumbral solar eclipse 
D) an umbral solar eclipse

Question 14

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

Accepted Answer

A) True 
 B)False

Question 15

An eclipse season is the interval during which the Sun crosses a node of the Moon's orbit.

Accepted Answer

A) True 
 B)False

Question 16

What is the term for the period of time it takes for the Moon to complete a cycle of the lunar phases that is approximately 29.5 days long?

Accepted Answer

A) sidereal period of the Moon 
B) saros cycle of the Moon 
C) synodic period of the Moon 
D) eclipse season of the Moon 
A) sidereal period of the Moon 
B) saros cycle of the Moon 
C) synodic period of the Moon 
D) eclipse season of the Moon

Question 17

For an observer in Oberon Bay,Australia,at a latitude of 39° South,what is the angle between the southern horizon and the south celestial pole?

Accepted Answer

A) 23.5° 
B) 39° 
C) 45° 
D) 51° 
A) 23.5° 
B) 39° 
C) 45° 
D) 51°

Question 18

In what two seasons does the Milky Way arc from east to west in the sky,as seen from Canada?

Accepted Answer

A) winter and spring 
B) spring and summer 
C) summer and fall 
D) fall and winter 
A) winter and spring 
B) spring and summer 
C) summer and fall 
D) fall and winter

Question 19

As the Earth rotates,circumpolar stars appear to move counterclockwise around the north celestial pole.

Accepted Answer

A) True 
 B)False

Question 20

Table 2-1
 $$\begin{array} { | c | c | } 
\hline \begin{array} { c } 
\text { Star } \
\text { Nane }
\end{array} & \begin{array} { c } 
\text { Apparent Visual } \
\text { Magnitude }
\end{array} \
\hline \text { d Dra } & 3.07 \
\hline \text { a Cet } & 2.53 \
\hline \text { Nirl } & 8.07 \
\hline \alpha \text { CMa } & - 1.46 \
\hline
\end{array}$$
-Refer to Table 2-1.Which star in the table would appear brightest to an observer on Earth?

Accepted Answer

A) ? Dra 
B) ? Cet 
C) Nim 
D)  ? CMa 
A) ? Dra 
B) ? Cet 
C) Nim 
D)  ? CMa

What is the term for the Moon when it is visible above the eastern horizon a couple of hours before sunrise?

If the north celestial pole appears on your horizon,what is your latitude?

Why does a totally eclipsed Moon glow coppery red?

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

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?

An observer in the southern 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?

Why doesn't the Earth experience a solar eclipse every month?

What information does a star's Greek-letter designation convey?

What is the sidereal period of the Moon?

You want to observe the star Arcturus just as it crosses the meridian.If the meridian crossing happens at exactly 9:00 p.m.tonight,at what time will it occur 7 days from now,at the same location?

-The diagram shows three approximate locations of the Sun along the western horizon.Which number indicates the location of the Sun at sunset on autumnal equinox (Sept.21)for an observer at a latitude of 45° North?

When does the full Moon occur?

What is the term for a solar eclipse in which the Moon's umbra reaches the Earth's surface?

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

An eclipse season is the interval during which the Sun crosses a node of the Moon's orbit.

What is the term for the period of time it takes for the Moon to complete a cycle of the lunar phases that is approximately 29.5 days long?

For an observer in Oberon Bay,Australia,at a latitude of 39° South,what is the angle between the southern horizon and the south celestial pole?

In what two seasons does the Milky Way arc from east to west in the sky,as seen from Canada?

As the Earth rotates,circumpolar stars appear to move counterclockwise around the north celestial pole.

Table 2-1 Star Nane Apparent Visual Magnitude d Dra 3.07 a Cet 2.53 Nirl 8.07 \alpha CMa -1.46 -Refer to Table 2-1.Which star in the table would appear brightest to an observer on Earth?

The Scale of the Cosmos

The Origin of Modern Astronomy

Astronomical Telescopes and Instruments

Sun Light and Sun Atoms

The Family of Stars

The Structure and Formation of Stars

The Deaths of Stars

The Milky Way Galaxy

Galaxies

Cosmology in the 21st Century

The Origin of the Solar System

Comparative Planetology of the Terrestrial Planets

Comparative Planetology of the Jovian Planets

Life on Other Worlds

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Exam 2: User's Guide to the Sky

What is the term for the Moon when it is visible above the eastern horizon a couple of hours before sunrise?

If the north celestial pole appears on your horizon,what is your latitude?

Why does a totally eclipsed Moon glow coppery red?

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

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?

An observer in the southern 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?

Why doesn't the Earth experience a solar eclipse every month?

What information does a star's Greek-letter designation convey?

What is the sidereal period of the Moon?

You want to observe the star Arcturus just as it crosses the meridian.If the meridian crossing happens at exactly 9:00 p.m.tonight,at what time will it occur 7 days from now,at the same location?

-The diagram shows three approximate locations of the Sun along the western horizon.Which number indicates the location of the Sun at sunset on autumnal equinox (Sept.21)for an observer at a latitude of 45° North?

When does the full Moon occur?

What is the term for a solar eclipse in which the Moon's umbra reaches the Earth's surface?

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

An eclipse season is the interval during which the Sun crosses a node of the Moon's orbit.

What is the term for the period of time it takes for the Moon to complete a cycle of the lunar phases that is approximately 29.5 days long?

For an observer in Oberon Bay,Australia,at a latitude of 39° South,what is the angle between the southern horizon and the south celestial pole?

In what two seasons does the Milky Way arc from east to west in the sky,as seen from Canada?

As the Earth rotates,circumpolar stars appear to move counterclockwise around the north celestial pole.

Table 2-1 Star Nane Apparent Visual Magnitude d Dra 3.07 a Cet 2.53 Nirl 8.07 \alpha CMa -1.46 -Refer to Table 2-1.Which star in the table would appear brightest to an observer on Earth?

The Scale of the Cosmos

The Origin of Modern Astronomy

Astronomical Telescopes and Instruments

Sun Light and Sun Atoms

The Family of Stars

The Structure and Formation of Stars

The Deaths of Stars

The Milky Way Galaxy

Galaxies

Cosmology in the 21st Century

The Origin of the Solar System

Comparative Planetology of the Terrestrial Planets

Comparative Planetology of the Jovian Planets

Life on Other Worlds

Filters