Intro to Celestial Sphere Notes

Intro to Celestial Sphere

Multiple Choice

We are located in the...

• Milky Way Galaxy

• Andromeda Galaxy

• Antennae Galaxies

• M82 Galaxy

Multiple Choice

Why does the Sun appear to be the largest star when there are stars that are much larger than the Sun?

• Stars have the same temperature as the Sun.
• Stars usually appear in groups called clusters.
• The Sun is closer to Earth than other stars.
• The Sun is younger than most other stars.

Multiple Choice

Compared to the Sun, all other stars look like points of light in the night sky because the stars _______.

• are much smaller than the Sun.
• are much farther away than the Sun.
• give off different colors than the Sun.
• give off much less light than the Sun.

Multiple Choice

List the following items from smallest to largest.

• universe, solar system, galaxy
• galaxy, solar system, universe
• solar system, galaxy, universe
• solar system, universe, galaxy

Multiple Choice

The imaginary line that the Earth is spinning around is called the

• axis.

• equator.

• border.

• force field.

Multiple Choice

What type of orbit does the Earth have?  This was proven by astronomer Johannes Kepler.

• An elliptical orbit around the moon.
• An elliptical orbit around the Sun.
• A circular orbit around the moon.
• A circular orbit around the Sun.

Multiple Choice

When viewed from observers using telescopes on earth, the light emitted from most objects (stars and galaxies) appears to be shifted toward the red end of the visible spectrum. What does this tell us about the objects?

• the objects are moving toward the observer (earth)

• the objects are stationary (not moving)

• the objects are moving away from the observer (earth)

• it tells the observer that the color should appear red

Multiple Choice

Earth and the other planets closest to the Sun are made mostly of _______

• gas
• metal
• water
• rock

Multiple Choice

Which is in order from the Sun to the edge of our solar system?

• Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
• Neptune, Uranus, Saturn, Jupiter, Mars, Earth, Venus, Mercury
• Mercury, Earth, Mars, Venus, Saturn, Jupiter, Uranus, Neptune
• Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto

Multiple Choice

What is our solar system made of?

• 1 star, 8 planets, many moons, asteroids, comets, meteoroids
• many stars, 8 planets, many moons, asteroids, comets, meteoroids
• 1 star, 9 planets, many moons, asteroids, comets, meteoroids
• millions to billions of stars, 8 planets, many moons, asteroids, comets, meteoroids

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What is the Earth's equatorial diameter?

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Which planet is ten times larger than Earth?

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Which planet has the smallest mass?

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What is Mercury's distance from the Sun?

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What is Jupiter's distance from the Sun?

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What is Mercury's period of revolution?

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What is Jupiter's period of revolution?

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What do you notice about the relationship between distance from the Sun and period of revolution? Hint: As distance from the Sun increases, what happens to the period of revolution?

Multiple Choice

What kind of relationship is there between distance from the Sun and Period of Revolution?

• cyclical

• inverse

• direct

• constant

Let's watch a Brain Pop on the Big Bang now

Fill in the Blanks

Write down the column number that you use to find the answer to the question, followed by the answer. Example:

Which planet is furthest from the Sun?

Column 2, Neptune

Write that in the answer section below.

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Write down the column number that you use to find the answer to the question, followed by the answer.

Which planet rotates the slowest? (takes the longest time)

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Write down the column number that you use to find the answer to the question, followed by the answer.

Which planet is almost the same size as Earth?

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Write down the column number that you use to find the answer to the question, followed by the answer.

Which planet has the least mass?

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Write down the column number that you use to find the answer to the question, followed by the answer.

Which celestial object is the largest in size?

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Write down the column number that you use to find the answer to the question, followed by the answer.

Which planet is largest in size?

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Write down the column number that you use to find the answer to the question, followed by the answer.

Which planet is closest to the Sun?

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Write down the column number that you use to find the answer to the question, followed by the answer.

Which planet is smallest in size? (diameter)

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Write down the column number that you use to find the answer to the question, followed by the answer.

Which planet rotates at almost the same rate as Earth?

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Write down the column number that you use to find the answer to the question, followed by the answer.

Which celestial object has the greatest mass?

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Write down the column number that you use to find the answer to the question, followed by the answer.

Which planet rotates the quickest? (takes the shortest time)

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Write down the column number that you use to find the answer to the question, followed by the answer.

Which planet takes the longest to revolve around the Sun?

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Write down the column number that you use to find the answer to the question, followed by the answer.

How far is Jupiter from the Sun?

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Write down the column number that you use to find the answer to the question, followed by the answer.

How long does it take Earth to rotate on its axis?

Multiple Choice

How do gas giants compare to the terrestrial planets?

• terrestrial planets are much larger
• terrestrial planets are much smaller
• gas giants are slightly larger
• gas giants are slightly smaller

Multiple Choice

Which set of planets is in order, from largest to smallest?

• Jupiter, Mars, Mercury
• Jupiter, Venus, Earth
• Uranus, Saturn, Mars
• Uranus, Mars, Venus

Multiple Choice

Pluto is called a dwarf planet. It is smaller than the planets in the solar system. The size of each solar system planet is listed in the table below. Which planet is MOST likely closest to Pluto in size?  
 

• Mars
• Mercury
• Jupiter
• Neptune

Multiple Choice

The graph below shows the diameters of the planets. The diameter of a planet is the distance from one side to the other through the middle at the widest part. Which two planets are closest in size?

• Uranus and Neptune
• Venus and Mars
• Jupiter and Saturn
• Mercury and Earth

Multiple Choice

The planets below are drawn to scale.Which planet could be Planet X?

• Neptune
• Mercury
• Uranus
• Venus

Multiple Choice

These planets from the solar system are drawn to scale. Which planet could be Planet Z?

• Mars
• Venus
• Neptune
• Mercury

Multiple Choice

These planets from the solar system are drawn to scale. Which planets are X and Y?

• X is Venus and Y is Mars.

• B. X is Mars and Y is Venus.

• X is Mercury and Y is Mars.

• X is Mars and Y is Mercury.