Question 1

What is the flux ratio of two stars whose difference in magnitude is 2.6?

Accepted Answer

A)  6.3 
B)  10.8 
C)  21.3 
D)  632 
E)  1090 
A)  6.3 
B)  10.8 
C)  21.3 
D)  632 
E)  1090

Question 2

The seasons are caused by Earth's orbit moving closer to or farther from the Sun.

Accepted Answer

A) True 
 B)False

Question 3

In about 12,000 years, the star closest to the north celestial pole will be __________.

Accepted Answer

A)  Vega 
B)  Polaris 
C)  Sirius 
D)  the Sun 
E)  Venus 
A)  Vega 
B)  Polaris 
C)  Sirius 
D)  the Sun 
E)  Venus

Question 4

Flux is a measure of the light energy from a star that hits a collecting area of one square meter in one second.

Accepted Answer

A) True 
 B)False

Question 5

Earth's axis is tilted at an angle of _______________ degrees.

Accepted Answer

The answer of Earth's axis is tilted at an angle...

Question 6

The nadir marks the point of the celestial sphere directly above your head.

Accepted Answer

A) True 
 B)False

Question 7

The ecliptic is often called the _______________ of Earth's orbit on the sky.

Accepted Answer

The answer of The ecliptic is often called the _______________...

Question 8

Arc seconds are _______________th of an arc minute.

Accepted Answer

The answer of Arc seconds are _______________th of an arc...

Question 9

Figure 2-3
In the above image (Figure 2-3) , what is the observer measuring?

Accepted Answer

A)  angle 
B)  arc 
C)  distance 
D)  angular distance 
E)  angular momentum 
A)  angle 
B)  arc 
C)  distance 
D)  angular distance 
E)  angular momentum

Question 10

What is an asterism?

Accepted Answer

A)  A legend or folklore association to a grouping of stars 
B)  Less formally defined group of stars outside the official 88 constellations 
C)  The council of astronomers who defined the 88 constellations 
D)  The northern pivot point of the celestial sphere 
E)  Constellations close enough to a celestial pole that they do not appear to rise from the east and set in the west 
A)  A legend or folklore association to a grouping of stars 
B)  Less formally defined group of stars outside the official 88 constellations 
C)  The council of astronomers who defined the 88 constellations 
D)  The northern pivot point of the celestial sphere 
E)  Constellations close enough to a celestial pole that they do not appear to rise from the east and set in the west

Question 11

On the day of summer solstice, explain the position of Earth and the light received by each of the hemispheres.

Accepted Answer

On the day of the summer solstice in lat

Question 12

Due to the cycle of precession, in 12,000 years, which star will replace Polaris as the guiding North Star?

Accepted Answer

A)  Betelgeuse 
B)  Sirius 
C)  Vega 
D)  Rigel 
E)  Spica 
A)  Betelgeuse 
B)  Sirius 
C)  Vega 
D)  Rigel 
E)  Spica

What is the flux ratio of two stars whose difference in magnitude is 2.6?

The seasons are caused by Earth's orbit moving closer to or farther from the Sun.

In about 12,000 years, the star closest to the north celestial pole will be __________.

Flux is a measure of the light energy from a star that hits a collecting area of one square meter in one second.

Earth's axis is tilted at an angle of _______________ degrees.

The nadir marks the point of the celestial sphere directly above your head.

The ecliptic is often called the _______________ of Earth's orbit on the sky.

Arc seconds are _______________th of an arc minute.

Figure 2-3 In the above image (Figure 2-3) , what is the observer measuring?

What is an asterism?

On the day of summer solstice, explain the position of Earth and the light received by each of the hemispheres.

Due to the cycle of precession, in 12,000 years, which star will replace Polaris as the guiding North Star?

Here and Now

Moon Phases and Eclipses

Origins of Modern Astronomy

Gravity

Light and Telescopes

Atoms and Spectra

The Sun

Origin of the Solar System and Extrasolar Planets

Earth the Active Planet

The Moon and Mercury: Comparing Airless Worlds

Venus and Mars

Jupiter and Saturn

Uranus Neptune Pluto and the Kuiper Belt

Meteorites Asteroids and Comets

Astrobiology: Life on Other Worlds

Filters

Exam 2: A User S Guide to the Sky

What is the flux ratio of two stars whose difference in magnitude is 2.6?

The seasons are caused by Earth's orbit moving closer to or farther from the Sun.

In about 12,000 years, the star closest to the north celestial pole will be __________.

Flux is a measure of the light energy from a star that hits a collecting area of one square meter in one second.

Earth's axis is tilted at an angle of _______________ degrees.

The nadir marks the point of the celestial sphere directly above your head.

The ecliptic is often called the _______________ of Earth's orbit on the sky.

Arc seconds are _______________th of an arc minute.

Figure 2-3 In the above image (Figure 2-3) , what is the observer measuring?

What is an asterism?

On the day of summer solstice, explain the position of Earth and the light received by each of the hemispheres.

Due to the cycle of precession, in 12,000 years, which star will replace Polaris as the guiding North Star?

Here and Now

Moon Phases and Eclipses

Origins of Modern Astronomy

Gravity

Light and Telescopes

Atoms and Spectra

The Sun

Origin of the Solar System and Extrasolar Planets

Earth the Active Planet

The Moon and Mercury: Comparing Airless Worlds

Venus and Mars

Jupiter and Saturn

Uranus Neptune Pluto and the Kuiper Belt

Meteorites Asteroids and Comets

Astrobiology: Life on Other Worlds

Filters