eclipses

lunar eclipse

A lunar eclipse occurs when the full moon moves through Earths shadow, which only happens when Earth is between the Moon and the Sun and all three are lined up in the same plane, called the ecliptic (Figure 1.4). In an eclipse, Earths shadow has two distinct parts: the umbra and the penumbra. The umbra is the inner, cone-shaped part of the shadow, in which all of the light has been blocked. The penumbra is the outer part of Earths shadow where only part of the light is blocked. In the penumbra, the light is dimmed but not totally absent. A total lunar eclipse occurs when the Moon travels completely in Earths umbra. During a partial lunar eclipse, only a portion of the Moon enters Earths umbra. Earths shadow is large enough that a lunar eclipse lasts for hours and can be seen by any part of Earth with a view of the Moon at the time of the eclipse (Figure 1.5). A lunar eclipse does not occur every month because Moons orbit is inclined 5-degrees to Earths orbit, so the two bodies are not in the same plane every month.

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solar eclipses

A solar eclipse occurs when the new Moon passes directly between the Earth and the Sun (Figure 1.1). This casts a shadow on the Earth and blocks Earths view of the Sun. A total solar eclipse occurs when the Moons shadow completely blocks the Sun (Figure 1.2). When only a portion of the Sun is out of view, it is called a partial solar eclipse. Solar eclipses are rare and usually only last a few minutes because the Moon casts only a small shadow (Figure 1.3). As the Sun is covered by the Moons shadow, it will actually get cooler outside. Birds may begin to sing, and stars will become visible in the sky. During a solar eclipse, the corona and solar prominences can be seen. A solar eclipse occurs when the Moon passes between Earth and the Sun in such a way that the Sun is either partially or totally hidden from view. Some people, including some scientists, chase eclipses all over the world to learn or just observe this amazing phenomenon. A solar eclipse shown as a series of pho- tos. Click image to the left or use the URL below. URL:

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instructional diagrams

description_image

This diagram shows a lunar eclipse. In a lunar eclipse, the earth lies in between the sun and the moon. The shadow of the Earth can be divided into two distinctive parts: the umbra and penumbra. There is no direct solar radiation within the umbra. However solar illumination is only partially blocked in the outer portion of the Earth's shadow, called the penumbra. This is because of the Sun's large angular size. In this diagram, the moon lies in the umbra of the earth. This leads to a total lunar eclipse.

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This image shows the types of solar eclipses. When a new moon passes directly between the Earth and the Sun, it causes a solar eclipse. When the sun, moon and Earth are lined up, the Moon casts a shadow on the Earth and blocks our view of the Sun. When the Moons shadow completely blocks the Sun, it is a total solar eclipse. If only part of the Sun is out of view, it is a partial solar eclipse. An anular eclipse occurs when the edge of the sun remains visible as a bright ring around the moon.

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The diagram shows the lunar eclipse. The lunar eclipse occurs when the moon passes behind the earth into its umbra region. During the total lunar eclipse, moon travels completely inside the earth's umbra. But in partial lunar eclipse, only a portion of the moon passes through earth's umbra region. When moon passes through earth's penumbra region, it is penumbral eclipsed. Since earth's shadow is large lunar eclipse lasts for hours and anyone with the view of moon can see the eclipse. Partial lunar eclipse occurs at least twice a year but total lunar eclipse is rear. The moon glows with dull red coloring during total lunar eclipse.

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This diagram shows solar eclipse. Moon rotates around the earth on an orbit that is shown in the picture. During solar eclipse, the moon lies between sun and earth so there will be a shadow on earth. Certain regions of earth will be dark due to the shadow of the moon since sun rays do not reach those regions. Moon is smaller than earth so the shadow covers a small region of the earth. The areas marked by Penumbera experience a partial eclipse, while Umbra areas experience full eclipse.

questions

a total solar eclipse is when

a) the suns shadow completely blocks the moon

-->  b) the moons shadow completely blocks the sun

c) the earths shadow completely blocks the sun

d) the earths shadow completely blocks the moon

during a solar eclipse

-->  a) the moon passes directly between the earth and the sun

b) the sun passes directly between the earth and moon

c) the earth passes directly between the sun and moon

d) none of the above

a solar eclipse occurs when the moons shadow completely blocks the sun.

-->  a) true

b) false

solar eclipses last only a few minutes because the moon casts a small shadow.

-->  a) true

b) false

during a lunar eclipse, darkness in the middle of the day may cause temperatures to cool and stars to become visible.

a) true

-->  b) false

a lunar eclipse is when

a) the moon is between the earth and sun.

b) the sun is between the earth and moon.

-->  c) the earth is in between the sun and moon.

d) none of the above.

the inner, cone-shaped part of the shadow, in which all of the light has been blocked.

a) umbrella

b) penumbra

-->  c) umbra

d) pendulum

which of these is true of a total lunar eclipse?

a) the whole moon enters earths umbra.

b) it lasts for hours.

c) it can be viewed from any place on earth that has a view of the moon.

-->  d) all of these.

the penumbra is the inner, cone-shaped part of the shadow, in which all light has been blocked.

a) true

-->  b) false

why dont we see a lunar eclipse once each month?

a) there is not a full moon that often.

-->  b) earth and moons orbits are not on exactly the same plane.

c) there is one each month, but not always in the same location.

d) the moon enters earths penumbra each month, but not its umbra.

diagram questions

question_image

Identify the Sun in this picture

a. C

-->  b. T

c. U

d. E

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Which label points to the moon?

a. M

b. C

c. E

-->  d. V

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What blocks the moon from the sun during an eclipse?

a. T

-->  b. M

c. V

d. E

question_image

Which letter represents the sun?

a. U

b. C

c. E

-->  d. T

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Identify Penumbra in the diagram

-->  a. A

b. R

c. U

d. S

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Which letter represents the Moon's orbit?

a. R

b. S

c. A

-->  d. U

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Where is the moon located during a total lunar eclipse?

a. U

b. A

c. M

-->  d. S

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Which label refers to the Moon?

a. K

-->  b. U

c. Y

d. D

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Which letter represents the Umbra?

-->  a. K

b. U

c. D

d. V

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Which label shows the penumbra?

a. M

b. U

-->  c. W

d. R

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Which letter stands for penumbra?

a. M

b. R

-->  c. W

d. U

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Identify the section in which all light is blocked.

a. W

b. D

c. R

-->  d. U

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Which label shows the Sun?

-->  a. D

b. M

c. R

d. W

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Which label represents the sun?

a. T

-->  b. J

c. X

d. K

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Which label represents the Sun?

a. N

b. H

-->  c. P

d. U

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Which letter represents the Zone of Totality?

a. H

b. N

-->  c. M

d. U

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Identify E

a. EARTH

b. PENUMBRA

c. SUN

-->  d. UMBRA

question_image

Which label shows the Sun?

a. D

b. J

-->  c. T

d. U

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Which label refers to the umbra?

a. U

b. Y

c. J

-->  d. W

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Which label represents the sun?

a. U

b. J

c. W

-->  d. Y

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Identify the Earth in this picture

a. S

b. D

c. H

-->  d. A

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Which label indicates the penumbra in the earth eclipses diagram?

a. S

-->  b. E

c. D

d. H

question_image

Select the penumbra region.

-->  a. E

b. A

c. S

d. D

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Identify the umbra in this picture

a. R

-->  b. W

c. F

d. E

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Which is the umbra?

-->  a. W

b. R

c. U

d. F

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Where is the moon positioned during a partial lunar eclipse?

a. U

-->  b. F

c. E

d. W

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How is the earth labeled in the diagram?

a. P

-->  b. Y

c. S

d. U

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Which type of shadow is labeled S?

a. PENUMBRA

b. POSTUMBRA

c. ANTUMBRA

-->  d. UMBRA

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Can you see the orbit of the earth?

-->  a. Y

b. YEA

c. NO

d. U

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Identify the solar eclipse in this picture

a. T

-->  b. H

c. K

d. C

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Which label represents the solar eclipse?

a. E

b. K

-->  c. H

d. N

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Where is the lunar eclipse?

-->  a. T

b. H

c. E

d. K

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What is being shown in this diagram?

a. Lunar Eclipse

b. Newtonian Totality

c. Gaeian Eclipse

-->  d. Solar Eclipse

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Identify the moon's inner, cone-shaped part shadow in the diagram.

a. Solar Eclipse

b. Lunar Eclipse

-->  c. Umbra

d. Penumbra

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Which is the inner, cone-shaped part of the shadow?

a. Penumbra

b. Earth

-->  c. Umbra

d. Moon

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What happens when the moon is directly between the sun and Earth?

a. full moon

-->  b. solar eclipse

c. lunar eclipse

d. new moon

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What would this be a diagram of?

a. quarter moon

b. full moon

-->  c. Solar eclipse

d. lunar eclipse

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What happened when the Moons shadow completely blocks the Sun?

-->  a. solar eclipse

b. lunar eclipse

c. umbra

d. penumbra

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What is the darkest part of this diagram?

a. Penumbra

-->  b. The Umbra

c. Sun

d. Earth

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How many celestial bodies are shown here?

a. four

b. one

-->  c. two

d. three

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What is linked together in space with the sun and the moon?

-->  a. Earth

b. Umbra

c. Prenumbra

d. Stars

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Which body lies in the umbra of this eclipse?

a. Sun

-->  b. Moon

c. Mars

d. Earth

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What region is the moon in when the earth sits in between the moon and the sun?

a. penumbra

-->  b. umbra

c. nebula

d. gamma

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What name does receive the eclipse in the orbit of the moon?

a. Penumbra

b. Antumbra

c. Eclipse

-->  d. Umbra

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Which part of the diagram casts a shadow on Earth and blocks our view of the Sun?

-->  a. Moon

b. Umbra

c. Penumbra

d. Antumbra

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What is the name of the shadow cast by the moon?

a. Silhouette

b. Antumbra

-->  c. Umbra

d. Penumbra

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How many moons are shown in this picture?

a. 3

b. 4

c. 2

-->  d. 1

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What happens If only part of the Sun is out of view?

a. lunar eclipse

b. there will be darkness

-->  c. a solar eclipse will happen

d. there will be no night

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Which of these regions is the earth in when the moon is between the earth and the sun?

a. Andromeda

-->  b. umbra

c. nebula

d. penumbra

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What part of the shadow of the moon blocks all the sunlight?

a. Penumbra

-->  b. Umbra

c. Sun

d. Moon

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How does a solar eclipse work?

a. The sun is between the moon and the Earth

b. The moon is next to the sun next to the Earth

-->  c. The moon stays in the middle between the sun and the Earth

d. The Earth is between the moon and the sun

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What happens during a total solar eclipse?

-->  a. The shadow of the moon completely blocks our view of the sun.

b. The Earth's shadow completely blocks our view of the moon.

c. The Earth's shadow partially blocks our view of the moon.

d. The shadow of the moon partially blocks our view of the sun.

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What name does receive the area between total shadow and total illumination?

a. Alumbra

b. Umbra

-->  c. Penumbra

d. Alba

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During orbit, does the moon spend more time in the penumbra or umbra?

a. The moon doesn't spend time in either

b. The moon has no relation to earth's orbit

c. Umbra

-->  d. Preumbra

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What section does both the earth and the moon occupy?

a. Illumination

b. Penumbra

-->  c. Umbra

d. Eclipse

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How many moons are shown in this picture?

-->  a. 1

b. 4

c. 3

d. 2

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How many types of shadow of the earth are there?

a. 4

-->  b. 2

c. 1

d. 5

question_image

What is the inner, cone-shaped part of the Moon's shadow called?

a. Eclipse

b. Penumbra

c. Penumbral

-->  d. Umbra

question_image

During a total lunar eclipse, the moon is in what part of the Earth's shadow?

a. Partial

b. Total

-->  c. Umbra

d. Penumbra

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Where is the moon located during a total lunar eclipse?

a. Between the sun and earth

-->  b. Umbra

c. Between the penumbra and umbra

d. Penumbra

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How many types of shadow of the earth are there?

-->  a. 2

b. 4

c. 5

d. 1

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Identify the moon position in a solar eclipse

-->  a. between the earth and sun

b. behind the sun

c. behind a cloud

d. behind the earth

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When is an eclipse considered a solar eclipse?

-->  a. When the moon moves between the sun and earth

b. When the sun is directly on earth

c. When the moon is behind the sun

d. When the sun covers earth

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How many types of eclipses can occur?

a. 5

-->  b. 2

c. 4

d. 3

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In a solar eclipse, which one sits in the middle?

-->  a. moon

b. Mars

c. sun

d. Earth

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Where is the moon positioned during a solar eclipse?

a. It's not visible

b. Behind the Earth

c. At an angle

-->  d. Between the Earth and the sun

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How many celestial bodies are shown here?

a. four

b. one

-->  c. three

d. two

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How many types of shadow of the earth are there?

a. 4

-->  b. 2

c. 5

d. 3

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What happens when the sun lit the moon at a steeper angle?

a. lunar eclipse

b. nothing

c. solar eclipse

-->  d. the earth will not be lit

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What is the large sphere between the sun and the Earth?

-->  a. The moon

b. The penumbra

c. The umbra

d. The sun

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What type of eclipse occurs the moon covers only part of the sun?

a. Lunar eclipse

b. Annular eclipse

c. Total eclipse

-->  d. Partial eclipse

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Which of the following has the most area of the sun covered by the moon during an eclipse?

a. twilight

b. partial eclipse

-->  c. total eclipse

d. annular eclipse

question_image

How many stages can an eclipse have?

a. 1

-->  b. 3

c. 2

d. 4

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How many types of eclipses occur?

a. 4

b. 1

c. 2

-->  d. 3

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What is in between the Moon and the Sun during a lunar eclipse?

-->  a. Earth

b. Penumbra

c. Umbra

d. Moon

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How many types of shadow of the earth are there?

-->  a. 2

b. 3

c. 4

d. 1

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What comes between moon and sun?

a. pluto

b. umbra

-->  c. earth

d. penumbra

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Which heavenly body is experiencing a total eclipse of the sun?

a. None

-->  b. Moon

c. Mercury

d. Earth

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How many parts are there in the lunar eclipse?

a. 3

b. 5

-->  c. 4

d. 2

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How many types of shadow of the earth are there?

a. 1

b. 2

-->  c. 3

d. 4

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What happens when the earth comes in between the sun and the moon?

a. Nothing happens

b. Solar eclipse

-->  c. Lunar eclipse

d. Earth stops rotating

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What is the name of these phenomena?

-->  a. Solar eclipse

b. Moon equinox

c. Moon eclipse

d. Sun equinox

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In what part of the earth's shadow is all the moon eclipsed?

-->  a. umbra

b. umbilical

c. penumbra

d. periumbra

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How many phases of the moon are shown?

-->  a. 3

b. 4

c. 2

d. 1

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Which one of the shadows formed by an eclipse is lighter?

a. Umbra

b. Earth

-->  c. Penumbra

d. Moon

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Which cosmic being creates the umbra in this instance?

-->  a. earth

b. Mars

c. Venus

d. moon

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How many circles are shown in the picture?

a. 5

b. 2

c. 6

-->  d. 3

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How many types of shadow of the earth are there?

a. 5

b. 3

-->  c. 2

d. 4

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Identify the light source

a. Penumbra

b. Umbra

-->  c. Sun

d. The Moon's Orbit

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During a total lunar eclipse, the moon travels completely inside where?

a. The Moon's Orbit

b. Earth's Penumbra

c. The Sun

-->  d. Earth's Umbra

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How many moons are shown in the diagram?

a. 2

b. 3

-->  c. 1

d. 4

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What happens if the earth doesn't block the sun from the moon?

a. penumbra will be the darkest

-->  b. There will be no lunar eclipse

c. umbra will be the darkest

d. there will be no solar eclipse

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In this lunar eclipse which body casts the shadow?

-->  a. Earth

b. Comet

c. Sun

d. Moon

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How many angles are depicted here?

-->  a. one

b. five

c. none

d. two

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How many parts of the solar system are shown?

a. 4

b. 2

c. 1

-->  d. 3

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What type of eclipse is demonstrated in the diagram?

a. Partial solar eclipse

b. Partial lunar eclipse

c. Total solar eclipse

-->  d. Total lunar eclipse

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Identify the area that the moon travels through during a total lunar eclipse.

a. Penumbra

b. Sun

-->  c. Umbra

d. Earth

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How many moons does Earth have?

a. 2

b. 3

c. 4

-->  d. One

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How many types of shadow of the earth are there?

a. 5

-->  b. 2

c. 3

d. 4

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In a penumbral lunar eclipse, in which region is the moon in?

a. Andromeda

b. nebula

-->  c. penumbra

d. umbra

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How many types of eclipses occur?

-->  a. 3

b. 4

c. 2

d. 1

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On the diagram C below, what will happen if the moon happened to be closer to the Earth?

-->  a. Eclipse will become total

b. There will be to eclipse

c. Eclipse will be partial

d. Weather on earth will change dramatically

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In the following diagram, one can see that an eclipse has occurred because:

a. The Earth has passed into the moon's shadow

-->  b. The moon has passed into the Earth's shadow

c. The moon has passed into the sun's shadow

d. The sun has passed into the moon's shadow

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How many planets are shown in the diagram?

a. 5

b. 3

-->  c. 1

d. 2

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In a total lunar eclipse, which region is the moon in?

-->  a. umbra

b. penumbra

c. nebula

d. Andromeda

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Where does the moon have to be for a total lunar eclipse to occur?

a. Anywhere

b. Between the sun and earth

c. Penumbra

-->  d. Umbra

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What is the full shadow called?

-->  a. umbra

b. shadow

c. moon

d. penumbra

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What is the complete shadowing of the earth called?

a. shade

b. penumbra

-->  c. umbra

d. eclipse

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How many types of eclipse are shown?

a. 4

b. 1

-->  c. 2

d. 3

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What is the shadowing of the planet from the sun called?

a. Earth

b. penumbra

-->  c. umbra

d. shadow