Eclipses
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The document discusses different types of solar and lunar eclipses, including total, partial, and annular solar eclipses and penumbral, partial, and total lunar eclipses. It provides examples of quotes from historical accounts of eclipses dating back to 1375 BC and explanations of why the moon appears red during a lunar eclipse and the different parts of an eclipse shadow.
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Phases of the moon
The document discusses various facts about the phases of the Moon including its average distance from Earth, size relative to Earth, and that its phases are caused by the relative positions of Earth, Moon, and Sun. It also summarizes the different phases and explains common misconceptions such as the Moon affecting weather or human behavior.
Eclipses
The document discusses eclipses of the sun and moon through various quotes and descriptions. It provides background on solar eclipses, noting that there are three types - annular, partial and total - and details like their frequency and visibility. It also covers lunar eclipses and explains why the moon appears red during an eclipse due to atmospheric filtering of light. Upcoming eclipses are listed, though none will be fully visible from the location.
Shadows and Solar-Lunar Eclipses
This document discusses shadows, solar eclipses, and lunar eclipses. There are four types of solar eclipses: total, annular, hybrid, and partial. During a total solar eclipse, the moon completely obscures the sun, allowing the solar corona to be seen. An annular solar eclipse occurs when the moon is not large enough to completely cover the sun, leaving a ring of sunlight visible. A hybrid eclipse shifts between total and annular. A partial solar eclipse occurs when the moon only partially obscures the sun. There are also three types of lunar eclipses: total, partial, and penumbral.
Eclipse
This document summarizes a presentation about solar eclipses, including:
1) It discusses the mythology and beliefs around eclipses in ancient cultures like China, India, and Egypt who saw them as omens. It also covers the mechanics of how eclipses occur.
2) It provides safety guidelines for viewing eclipses, emphasizing the importance of using approved solar filters.
3) It uses computer simulations to show the partial solar eclipse of March 29, 2006 as seen from different locations, and lists some important future eclipses between the present and 2030.
Eclipse presentation[1]
A lunar eclipse occurs when the Moon passes through the Earth's shadow. There are three types of lunar eclipses - total, partial, and penumbral - depending on how much of the Moon passes through the Earth's umbra or penumbra. During a total lunar eclipse, the Moon takes on a red color due to refraction of sunlight through the Earth's atmosphere. A solar eclipse occurs when the Moon passes between the Earth and the Sun, casting its shadow on parts of Earth. There are also three types of solar eclipses - total, partial, and annular - depending on the Moon's position and alignment with the Earth and Sun.
Solar and lunar_eclipses
There are two types of eclipses: lunar eclipses, which occur when the moon passes into Earth's shadow, and solar eclipses, which occur when the moon passes between Earth and the sun. Lunar eclipses can be total, partial, or penumbral depending on how far into Earth's shadow the moon passes. Solar eclipses can be total, partial, or annular depending on the moon's position in its orbit. Eclipses do not occur every month because the moon's orbit is tilted relative to Earth's orbit around the sun, so the three objects do not align perfectly except during eclipse seasons.
Eclipses
The document discusses eclipses and provides myths and legends about them from different cultures. It explains that solar eclipses occur when the moon passes between the Earth and sun, casting its shadow on Earth. Lunar eclipses occur when the Earth passes between the sun and moon, and the Earth's shadow is cast on the moon. The document suggests doing a hands-on activity using balls and lamps to observe how eclipses are formed and includes links to NASA videos and worksheets on eclipses.
Solar and lunar eclipses
An eclipse occurs when one celestial body blocks the light of another from an observer's perspective on Earth. There are two main types - solar eclipses where the moon passes in front of the sun, and lunar eclipses where the moon passes through the Earth's shadow. During a solar eclipse, the moon's shadow falls on parts of Earth and the sun appears darkened; there are three types depending on how much of the sun is covered. A lunar eclipse is visible over a larger area as the moon passes through the Earth's shadow and takes on a reddish hue. Eclipses can last up to seven minutes and a total solar eclipse occurs about every 1.5 years.
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The document discusses various facts about the phases of the Moon including its average distance from Earth, size relative to Earth, and that its phases are caused by the relative positions of Earth, Moon, and Sun. It also summarizes the different phases and explains common misconceptions such as the Moon affecting weather or human behavior.
Eclipses
The document discusses eclipses of the sun and moon through various quotes and descriptions. It provides background on solar eclipses, noting that there are three types - annular, partial and total - and details like their frequency and visibility. It also covers lunar eclipses and explains why the moon appears red during an eclipse due to atmospheric filtering of light. Upcoming eclipses are listed, though none will be fully visible from the location.
Shadows and Solar-Lunar Eclipses
This document discusses shadows, solar eclipses, and lunar eclipses. There are four types of solar eclipses: total, annular, hybrid, and partial. During a total solar eclipse, the moon completely obscures the sun, allowing the solar corona to be seen. An annular solar eclipse occurs when the moon is not large enough to completely cover the sun, leaving a ring of sunlight visible. A hybrid eclipse shifts between total and annular. A partial solar eclipse occurs when the moon only partially obscures the sun. There are also three types of lunar eclipses: total, partial, and penumbral.
Eclipse
This document summarizes a presentation about solar eclipses, including:
1) It discusses the mythology and beliefs around eclipses in ancient cultures like China, India, and Egypt who saw them as omens. It also covers the mechanics of how eclipses occur.
2) It provides safety guidelines for viewing eclipses, emphasizing the importance of using approved solar filters.
3) It uses computer simulations to show the partial solar eclipse of March 29, 2006 as seen from different locations, and lists some important future eclipses between the present and 2030.
Eclipse presentation[1]
A lunar eclipse occurs when the Moon passes through the Earth's shadow. There are three types of lunar eclipses - total, partial, and penumbral - depending on how much of the Moon passes through the Earth's umbra or penumbra. During a total lunar eclipse, the Moon takes on a red color due to refraction of sunlight through the Earth's atmosphere. A solar eclipse occurs when the Moon passes between the Earth and the Sun, casting its shadow on parts of Earth. There are also three types of solar eclipses - total, partial, and annular - depending on the Moon's position and alignment with the Earth and Sun.
Solar and lunar_eclipses
There are two types of eclipses: lunar eclipses, which occur when the moon passes into Earth's shadow, and solar eclipses, which occur when the moon passes between Earth and the sun. Lunar eclipses can be total, partial, or penumbral depending on how far into Earth's shadow the moon passes. Solar eclipses can be total, partial, or annular depending on the moon's position in its orbit. Eclipses do not occur every month because the moon's orbit is tilted relative to Earth's orbit around the sun, so the three objects do not align perfectly except during eclipse seasons.
Eclipses
The document discusses eclipses and provides myths and legends about them from different cultures. It explains that solar eclipses occur when the moon passes between the Earth and sun, casting its shadow on Earth. Lunar eclipses occur when the Earth passes between the sun and moon, and the Earth's shadow is cast on the moon. The document suggests doing a hands-on activity using balls and lamps to observe how eclipses are formed and includes links to NASA videos and worksheets on eclipses.
Solar and lunar eclipses
An eclipse occurs when one celestial body blocks the light of another from an observer's perspective on Earth. There are two main types - solar eclipses where the moon passes in front of the sun, and lunar eclipses where the moon passes through the Earth's shadow. During a solar eclipse, the moon's shadow falls on parts of Earth and the sun appears darkened; there are three types depending on how much of the sun is covered. A lunar eclipse is visible over a larger area as the moon passes through the Earth's shadow and takes on a reddish hue. Eclipses can last up to seven minutes and a total solar eclipse occurs about every 1.5 years.
Eclipses
1) Eclipses occur when one celestial body blocks the light from another. Lunar eclipses happen during a full moon when the Earth casts its shadow on the moon. Solar eclipses occur during a new moon when the moon passes between the Earth and sun.
2) There are three types of lunar eclipses - total, partial, and penumbral - and three types of solar eclipses - total, partial, and annular.
3) Eclipses do not occur every month because the moon's orbit is tilted relative to the Earth's orbit around the sun. Lunar eclipses are more frequent than solar eclipses.
Lunar eclipses
The document discusses lunar eclipses. It defines different types of lunar eclipses including penumbral, partial, and total eclipses. The next visible total lunar eclipse will occur on January 31, 2018 and will be seen in Asia, Australia, the Pacific Ocean, and western North America. During a lunar eclipse, the moon appears red due to Rayleigh scattering, which scatters blue light from the sun more than red light when it passes through the earth's atmosphere. For an eclipse to occur, the moon must pass within 11.38 degrees of the ecliptic plane at either its ascending or descending node where it intersects the ecliptic.
Solar and lunar eclipses
A "lunar eclipse" and a "solar eclipse" refer to events involving three celestial bodies: the Sun ("solar"), the moon ("lunar"), and the Earth. A lunar eclipse occurs when the Earth passes between the Moon and the Sun, and the Earth's shadow obscures the moon or a portion of it. A solar eclipse occurs when the Moon passes between the Earth and the Sun, blocking all or a portion of the Sun.
Eclipses - Solar and Lunar Eclipses
The document discusses lunar and solar eclipses. It explains that lunar eclipses occur when the Earth passes between the Sun and Moon, casting its shadow on the Moon. Solar eclipses occur when the Moon passes between the Earth and Sun, casting its shadow on parts of Earth. For an eclipse to occur, the Sun, Moon and Earth must be aligned on the same plane. The document provides details on the conditions required to view lunar and solar eclipses and why the Moon appears red during a lunar eclipse.
Solar and Lunar eclipse
This document discusses eclipses, including lunar and solar eclipses. It explains that eclipses occur when the sun, earth, and moon are aligned so that one celestial body casts a shadow on the other. A lunar eclipse can only happen during a full moon, while a solar eclipse can only happen during a new moon. The document outlines the different types of solar eclipses and provides safety precautions for viewing a solar eclipse directly.
Solar and lunar_eclipses1
There are two types of eclipses: solar and lunar. A lunar eclipse occurs when the moon passes into the Earth's shadow, appearing red or dark. A solar eclipse happens when the moon passes between the Earth and sun, casting its shadow on Earth. There are three types of each: total, partial, and penumbral/annular. Lunar eclipses are more common as anyone experiencing nighttime can see it, while only a small area experiences a solar eclipse due to the moon's small umbral shadow. Eclipses occur during eclipse seasons when the sun, Earth, and moon are directly aligned.
Eclipses
The document provides an overview of lunar phases, eclipses, and tides. It explains that the moon orbits at an angle relative to Earth's orbit and reflects sunlight, causing phases. Eclipses occur when the sun, earth, and moon align, sometimes blocking sunlight. Total lunar eclipses make the moon appear red due to atmospheric filtering of light. The moon's gravity also causes two high tides each day by pulling the side of Earth closest and farthest to it.
Eclipses - Solar and Lunar Eclipses
The document discusses lunar and solar eclipses. It explains that lunar eclipses occur when the Earth passes between the sun and moon, casting its shadow on the moon. Solar eclipses occur when the moon passes between the Earth and sun, casting its shadow on parts of Earth. Eclipses only occur when the sun, Earth, and moon are aligned on the same plane. The document provides details on the conditions required to see each type of eclipse and diagrams demonstrating the geometry of lunar and solar eclipses.
Solar and lunar eclipse
There are two types of eclipses - solar and lunar. A solar eclipse occurs when the moon passes between the earth and sun, while a lunar eclipse happens when the earth is between the sun and moon. Eclipses form when the three celestial bodies are aligned in a straight line. An eclipse can be total in the umbra region of complete shadow or partial in the penumbra region of partial shadow.
Solar and lunar eclipse
An eclipse occurs when one astronomical object passes in front of another, temporarily obscuring it from view. There are two types of eclipses - solar eclipses, which occur when the moon passes between the earth and sun, and lunar eclipses, which occur when the earth passes between the sun and moon. The document provides instructions for safely viewing an eclipse using a pinhole projector or solar filter to project the sun's image without looking directly at it.
Solar Eclipse of July 22, 2009
A solar eclipse occurs when the moon passes between the Earth and the sun, blocking the sun's light. There are typically 2-5 solar eclipses per year. There are four types of solar eclipses: total, annular, partial, and hybrid. A total solar eclipse, where the moon completely blocks the sun's light, occurs on average every 18 months and can only be seen from a narrow path on Earth. The longest total solar eclipse of the 21st century occurred on July 22, 2009 and lasted over 6 minutes. Special care must be taken to safely observe a solar eclipse by using eclipse glasses or other filters to view the sun.
September 27 Lunar Eclipse
The document discusses the total lunar eclipse that will occur on the evening of September 27, 2015 in North America. It will be visible across much of the western hemisphere and last over an hour. The eclipse will have five stages as the Moon passes through Earth's penumbra and umbra shadows. Observers are encouraged to time the moments when the umbra's edge crosses different lunar features to help scientists study variations in the size of Earth's shadow.
Eclipses by WSTA412
An eclipse occurs when a celestial body passes in front of the sun, blocking its light. There are two types of eclipses: lunar eclipses, where the earth casts a shadow on the moon, and solar eclipses, where the moon casts a shadow on earth. During a lunar eclipse, the earth blocks the sun's light from reaching the moon, causing it to glow red. A total lunar eclipse occurs when the moon passes completely into the earth's shadow, while a partial lunar eclipse happens when it only partially enters the shadow.
Moon Motions and Eclipses
The document summarizes the motions and phases of the Earth-Moon system. It explains that the moon orbits Earth over the course of about a month in an elliptical orbit, appearing larger when closer (perigee) and smaller when farther (apogee). The changing positions result in the phases of the moon as the illuminated side facing Earth waxes and wanes over the lunar cycle. Eclipses occur when the sun, Earth, and moon align, causing the moon to block the sun during a solar eclipse or Earth to block the sun's light during a lunar eclipse.
Aug 21, 2017 solar eclipse
The document discusses different types of solar eclipses: partial solar eclipses where only part of the sun is blocked by the moon; annular eclipses where the moon appears smaller allowing light to shine around the edges; and total lunar eclipses where the moon passes into the Earth's shadow. It provides information on the next solar eclipse over the US in 2024 and resources from NASA on visualizing and tracing the 2017 eclipse path. Safety tips are outlined for viewing a solar eclipse, including eye protection, layers of clothing, food, water, and first aid supplies.
Solar And Lunar
An eclipse occurs when one celestial body passes between a source of light and another, blocking the light. There are two types of eclipses: solar eclipses, where the moon passes between the earth and sun, and lunar eclipses, where the earth passes between the moon and sun. The moon's shadow during a solar eclipse has two parts - the penumbra, where a partial eclipse can be seen, and the umbra, where a total eclipse occurs.
Different cases in the formation of shadows
This document discusses different types of shadows formed during lunar and solar eclipses. A lunar eclipse occurs when the moon moves into Earth's shadow and is aligned with the sun and Earth. This can result in a blood moon that appears reddish. A solar eclipse happens when the moon is positioned between the Earth and sun, casting its shadow onto a portion of Earth. The document defines umbra, penumbra, and antumbra shadows and how they relate to complete or partial coverage of the moon or sun during different eclipse types. It also examines how the size of the light source and obstacle can impact shadow formation and characteristics.
Eclipse
An eclipse occurs when one celestial body passes between the sun and another, blocking sunlight or moonlight. There are two main types of eclipses - lunar eclipses, where the moon passes into Earth's shadow, and solar eclipses, where the moon passes between Earth and the sun. During a lunar eclipse, the moon turns red as it is illuminated only by sunlight passing through Earth's atmosphere. A solar eclipse can be partial or total, where the moon completely blocks the sun's light over a small area. Total solar eclipses are rare as the moon's shadow is small and its orbit is tilted relative to Earth's.
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The document discusses different types of eclipses including solar and lunar eclipses. A solar eclipse occurs when the moon passes between the earth and sun, blocking the sun from view. A lunar eclipse occurs when the earth passes between the sun and moon, casting the moon in earth's shadow. The document provides details on the different types of solar and lunar eclipses as well as explanations for why eclipses do not occur every month and why the moon appears red during a lunar eclipse.
D. the moon
There were several theories proposed to explain the origin of the Moon throughout history. The first was the fission theory from the 19th century, which suggested that the Moon formed when a chunk of Earth was pulled away by the Sun's gravity as Earth rapidly spun. Later theories included the capture theory, where the Moon was a wandering planet captured by Earth, and the coaccretion theory where the Moon and Earth formed together from the same material. Currently, the giant impact theory is favored, where a Mars-sized body collided with Earth, ejecting debris that coalesced to form the Moon. This theory best explains the compositional similarities and differences between Earth and the Moon.
views of sun earth moon and some phenomenon
1) The document presents several images of Earth, the Moon, and the Sun taken from various distances by spacecrafts like MESSENGER, Galileo, and Rosetta.
2) An image of Earth illuminated at night was taken by the Moon Mineralogy Mapper on the lunar surface.
3) The largest solar flare ever recorded occurred in November 2003 and sent bursts of energy towards Earth but it only received a glancing shot and not a direct hit.
4) Solar prominences and coronal mass ejections can erupt from the sun's surface and potentially impact Earth.
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Eclipses
1) Eclipses occur when one celestial body blocks the light from another. Lunar eclipses happen during a full moon when the Earth casts its shadow on the moon. Solar eclipses occur during a new moon when the moon passes between the Earth and sun.
2) There are three types of lunar eclipses - total, partial, and penumbral - and three types of solar eclipses - total, partial, and annular.
3) Eclipses do not occur every month because the moon's orbit is tilted relative to the Earth's orbit around the sun. Lunar eclipses are more frequent than solar eclipses.
Lunar eclipses
The document discusses lunar eclipses. It defines different types of lunar eclipses including penumbral, partial, and total eclipses. The next visible total lunar eclipse will occur on January 31, 2018 and will be seen in Asia, Australia, the Pacific Ocean, and western North America. During a lunar eclipse, the moon appears red due to Rayleigh scattering, which scatters blue light from the sun more than red light when it passes through the earth's atmosphere. For an eclipse to occur, the moon must pass within 11.38 degrees of the ecliptic plane at either its ascending or descending node where it intersects the ecliptic.
Solar and lunar eclipses
A "lunar eclipse" and a "solar eclipse" refer to events involving three celestial bodies: the Sun ("solar"), the moon ("lunar"), and the Earth. A lunar eclipse occurs when the Earth passes between the Moon and the Sun, and the Earth's shadow obscures the moon or a portion of it. A solar eclipse occurs when the Moon passes between the Earth and the Sun, blocking all or a portion of the Sun.
Eclipses - Solar and Lunar Eclipses
The document discusses lunar and solar eclipses. It explains that lunar eclipses occur when the Earth passes between the Sun and Moon, casting its shadow on the Moon. Solar eclipses occur when the Moon passes between the Earth and Sun, casting its shadow on parts of Earth. For an eclipse to occur, the Sun, Moon and Earth must be aligned on the same plane. The document provides details on the conditions required to view lunar and solar eclipses and why the Moon appears red during a lunar eclipse.
Solar and Lunar eclipse
This document discusses eclipses, including lunar and solar eclipses. It explains that eclipses occur when the sun, earth, and moon are aligned so that one celestial body casts a shadow on the other. A lunar eclipse can only happen during a full moon, while a solar eclipse can only happen during a new moon. The document outlines the different types of solar eclipses and provides safety precautions for viewing a solar eclipse directly.
Solar and lunar_eclipses1
There are two types of eclipses: solar and lunar. A lunar eclipse occurs when the moon passes into the Earth's shadow, appearing red or dark. A solar eclipse happens when the moon passes between the Earth and sun, casting its shadow on Earth. There are three types of each: total, partial, and penumbral/annular. Lunar eclipses are more common as anyone experiencing nighttime can see it, while only a small area experiences a solar eclipse due to the moon's small umbral shadow. Eclipses occur during eclipse seasons when the sun, Earth, and moon are directly aligned.
Eclipses
The document provides an overview of lunar phases, eclipses, and tides. It explains that the moon orbits at an angle relative to Earth's orbit and reflects sunlight, causing phases. Eclipses occur when the sun, earth, and moon align, sometimes blocking sunlight. Total lunar eclipses make the moon appear red due to atmospheric filtering of light. The moon's gravity also causes two high tides each day by pulling the side of Earth closest and farthest to it.
Eclipses - Solar and Lunar Eclipses
The document discusses lunar and solar eclipses. It explains that lunar eclipses occur when the Earth passes between the sun and moon, casting its shadow on the moon. Solar eclipses occur when the moon passes between the Earth and sun, casting its shadow on parts of Earth. Eclipses only occur when the sun, Earth, and moon are aligned on the same plane. The document provides details on the conditions required to see each type of eclipse and diagrams demonstrating the geometry of lunar and solar eclipses.
Solar and lunar eclipse
There are two types of eclipses - solar and lunar. A solar eclipse occurs when the moon passes between the earth and sun, while a lunar eclipse happens when the earth is between the sun and moon. Eclipses form when the three celestial bodies are aligned in a straight line. An eclipse can be total in the umbra region of complete shadow or partial in the penumbra region of partial shadow.
Solar and lunar eclipse
An eclipse occurs when one astronomical object passes in front of another, temporarily obscuring it from view. There are two types of eclipses - solar eclipses, which occur when the moon passes between the earth and sun, and lunar eclipses, which occur when the earth passes between the sun and moon. The document provides instructions for safely viewing an eclipse using a pinhole projector or solar filter to project the sun's image without looking directly at it.
Solar Eclipse of July 22, 2009
A solar eclipse occurs when the moon passes between the Earth and the sun, blocking the sun's light. There are typically 2-5 solar eclipses per year. There are four types of solar eclipses: total, annular, partial, and hybrid. A total solar eclipse, where the moon completely blocks the sun's light, occurs on average every 18 months and can only be seen from a narrow path on Earth. The longest total solar eclipse of the 21st century occurred on July 22, 2009 and lasted over 6 minutes. Special care must be taken to safely observe a solar eclipse by using eclipse glasses or other filters to view the sun.
September 27 Lunar Eclipse
The document discusses the total lunar eclipse that will occur on the evening of September 27, 2015 in North America. It will be visible across much of the western hemisphere and last over an hour. The eclipse will have five stages as the Moon passes through Earth's penumbra and umbra shadows. Observers are encouraged to time the moments when the umbra's edge crosses different lunar features to help scientists study variations in the size of Earth's shadow.
Eclipses by WSTA412
An eclipse occurs when a celestial body passes in front of the sun, blocking its light. There are two types of eclipses: lunar eclipses, where the earth casts a shadow on the moon, and solar eclipses, where the moon casts a shadow on earth. During a lunar eclipse, the earth blocks the sun's light from reaching the moon, causing it to glow red. A total lunar eclipse occurs when the moon passes completely into the earth's shadow, while a partial lunar eclipse happens when it only partially enters the shadow.
Moon Motions and Eclipses
The document summarizes the motions and phases of the Earth-Moon system. It explains that the moon orbits Earth over the course of about a month in an elliptical orbit, appearing larger when closer (perigee) and smaller when farther (apogee). The changing positions result in the phases of the moon as the illuminated side facing Earth waxes and wanes over the lunar cycle. Eclipses occur when the sun, Earth, and moon align, causing the moon to block the sun during a solar eclipse or Earth to block the sun's light during a lunar eclipse.
Aug 21, 2017 solar eclipse
The document discusses different types of solar eclipses: partial solar eclipses where only part of the sun is blocked by the moon; annular eclipses where the moon appears smaller allowing light to shine around the edges; and total lunar eclipses where the moon passes into the Earth's shadow. It provides information on the next solar eclipse over the US in 2024 and resources from NASA on visualizing and tracing the 2017 eclipse path. Safety tips are outlined for viewing a solar eclipse, including eye protection, layers of clothing, food, water, and first aid supplies.
Solar And Lunar
An eclipse occurs when one celestial body passes between a source of light and another, blocking the light. There are two types of eclipses: solar eclipses, where the moon passes between the earth and sun, and lunar eclipses, where the earth passes between the moon and sun. The moon's shadow during a solar eclipse has two parts - the penumbra, where a partial eclipse can be seen, and the umbra, where a total eclipse occurs.
Different cases in the formation of shadows
This document discusses different types of shadows formed during lunar and solar eclipses. A lunar eclipse occurs when the moon moves into Earth's shadow and is aligned with the sun and Earth. This can result in a blood moon that appears reddish. A solar eclipse happens when the moon is positioned between the Earth and sun, casting its shadow onto a portion of Earth. The document defines umbra, penumbra, and antumbra shadows and how they relate to complete or partial coverage of the moon or sun during different eclipse types. It also examines how the size of the light source and obstacle can impact shadow formation and characteristics.
Eclipse
An eclipse occurs when one celestial body passes between the sun and another, blocking sunlight or moonlight. There are two main types of eclipses - lunar eclipses, where the moon passes into Earth's shadow, and solar eclipses, where the moon passes between Earth and the sun. During a lunar eclipse, the moon turns red as it is illuminated only by sunlight passing through Earth's atmosphere. A solar eclipse can be partial or total, where the moon completely blocks the sun's light over a small area. Total solar eclipses are rare as the moon's shadow is small and its orbit is tilted relative to Earth's.
The Great American Solar Eclipse
The document provides information about the upcoming August 21, 2017 total solar eclipse, including key times and locations to view it, safety tips for viewing, and what phenomena can be observed. The eclipse will be visible across the United States, with the path of totality stretching from Oregon to South Carolina. Key events along the path include first contact at 1:06 PM, totality beginning at 2:35 PM lasting 2 minutes 13 seconds, and fourth contact at 4:00 PM from Brasstown Bald in Georgia. Proper solar filters are required to safely observe the partial phases, while the corona can only be viewed without filters during the brief period of totality.
Eclipses And Tides
The document discusses different types of eclipses including solar and lunar eclipses. A solar eclipse occurs when the moon passes between the earth and sun, blocking the sun from view. A lunar eclipse occurs when the earth passes between the sun and moon, casting the moon in earth's shadow. The document provides details on the different types of solar and lunar eclipses as well as explanations for why eclipses do not occur every month and why the moon appears red during a lunar eclipse.
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D. the moon
There were several theories proposed to explain the origin of the Moon throughout history. The first was the fission theory from the 19th century, which suggested that the Moon formed when a chunk of Earth was pulled away by the Sun's gravity as Earth rapidly spun. Later theories included the capture theory, where the Moon was a wandering planet captured by Earth, and the coaccretion theory where the Moon and Earth formed together from the same material. Currently, the giant impact theory is favored, where a Mars-sized body collided with Earth, ejecting debris that coalesced to form the Moon. This theory best explains the compositional similarities and differences between Earth and the Moon.
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Notas Sobre Eclipses Parte I.
Nota: Este trabajo es original de parte de Andrés Mejía Valencia, que ha decidido compartirlo con todos los Amigos de nuestra Querida Sociedad Julio Garavito como una muestra de su Aprecio y Gratitud por la SJG
Esta presentación es de la primera parte de la charla sobre eclipses. Habla de generalidades y apuntes sobre algunos eclipses que tuve la oportunidad de observar.
Eclipse and its types with asteroid comets and meteorites and black hole
This document presents information about eclipses, asteroids, comets, meteorites, and black holes. It discusses the history of eclipses dating back over 4000 years in China. It describes the two types of eclipses - lunar and solar eclipses. Asteroids are described as small planetary bodies that orbit the sun, ranging in size from 933km to only 6m in diameter. Comets contain an icy core with dust and release gas and particles as they orbit the sun. Meteorites are small pieces of debris from asteroids or comets that survive entering Earth's atmosphere. Black holes are regions with extremely strong gravitational fields that can absorb anything, even light.
Eclipse 5
- Solar eclipses occur when the Moon passes between the Sun and Earth, casting its shadow on Earth's surface.
- Eclipses can be partial, total, or annular depending on the Moon's alignment with the Sun and Earth. A total solar eclipse can only be seen within the narrow path of the Moon's umbral shadow.
- While eclipses are now understood scientifically, many ancient cultures viewed solar eclipses as ominous events, believing they disrupted the natural order. Some people still react fearfully during an eclipse today.
phases_eclipses.ppt
The document discusses lunar phases and eclipses. It explains that the moon orbits the Earth at an angle and its phases (new, waxing crescent, first quarter, etc.) are caused by the changing portion of its surface that is illuminated by the sun. It describes three types of lunar eclipses that occur when the Earth passes between the sun and moon, casting its shadow on the moon. Solar eclipses happen when the moon passes between the Earth and sun, casting its shadow on parts of the Earth. The document also briefly discusses how tides are caused by the gravitational pull of the moon and sun on the Earth's oceans and atmosphere.
Urano
Uranus is the seventh planet from the Sun. It has a blue-green color and was discovered in 1781 by William Herschel. Uranus has a unique axial tilt of 97.86 degrees, causing it to orbit the Sun on its side. It has 27 known moons, including large moons like Titania and Oberon. Uranus also has a system of 13 rings composed of narrow dark rings in the inner system and brightly colored outer rings.
Wtlftm dec 2010
The document provides information about astronomical events visible in December 2010, including a total lunar eclipse on December 21st lasting 72 minutes, the Orion Nebula which will be visible through telescopes, and the Geminid meteor shower peaking on December 13-14th with 50-80 meteors per hour. It also discusses the winter solstice on December 21st being the shortest day of the year in the northern hemisphere and the constellation Taurus visible in the northeast sky between Aries and Gemini.
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Roff andy examples and explanations for a flat earth
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Year 6 - Eclipses.pptx
There are two types of eclipses: solar eclipses and lunar eclipses. A solar eclipse occurs when the moon passes between the earth and sun, blocking the sun's light. A lunar eclipse occurs when the earth passes between the sun and moon, casting its shadow on the moon. Both occur when the three celestial bodies are aligned in a straight line. A solar eclipse can last only a few minutes, while a lunar eclipse can last for several hours. Total eclipses block the entire sun or moon, while partial eclipses only block part of the sun or moon.
04 The Sun Mc Neely
The document provides information about the sun, including:
- The sun is a star that is the center of our solar system and provides light, heat, and energy for life on Earth.
- Ancient civilizations worshipped the sun as a god due to its importance.
- The sun is powered by nuclear fusion in its core and has a diameter of over 432,000 miles.
- Other topics covered include the sun's luminosity, solar constant, astronomical units, structure including the photosphere and chromosphere, sunspots, solar cycle, solar wind, and more.
the first moon landing
The document discusses the first moon landing by Apollo 11 in July 1969. It provides background information on previous Soviet and American space missions. It then summarizes the six successful Apollo missions that landed astronauts on the moon between 1969-1972. The document notes that Neil Armstrong and Buzz Aldrin were the first men to walk on the moon as part of the Apollo 11 mission. Finally, it addresses various conspiracy theories that the moon landing was fake, but provides scientific explanations for how the moon landing photos were possible.
The Universe; What's Beyond?
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Venus transit-a1-earth-sun-distance-final
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1) The objectives of calculating a physical parameter (Earth-Sun distance) by applying mathematics and image analysis skills.
2) The transit of Venus phenomenon, including its rarity, previous transits observed, and effects seen like the "black drop" and "Venus aureole."
3) The methodology that will be used - measuring the parallax of Venus through simultaneous images from two locations, and using trigonometry to calculate the Earth-Sun distance from the parallax measurements.
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The geological time scale
The document summarizes the Geologic Time Scale which divides Earth's history into units including eons, eras, periods, and epochs. It describes the three main eras:
1) The Paleozoic Era (544-251 million years ago) which was dominated by invertebrates and saw the rise of fish and amphibians on land and sea.
2) The Mesozoic Era (251-65 million years ago) which was dominated by reptiles like dinosaurs and saw the rise of mammals and the breakup of Pangaea.
3) The ongoing Cenozoic Era (past 65 million years) which is the "Age of Mammals" and
Unit one presentation
This document provides an introduction to earth science concepts. It discusses that earth science is the study of Earth's systems, including meteorology, astronomy, geology, and oceanography. It also covers key concepts like making observations versus inferences, using metric measurements, scientific notation, calculating percent error, determining density, understanding different types of graphs, and calculating rates of change.
Photo scavenger hunt jasper
The document discusses various landforms and weathering processes, including frost heaves caused by the expansion of freezing water, oxidation shown by changes in soil color due to chemical weathering, and how streams form through erosion on the sides and deposition in the middle. It also describes rock outcrops, runoff from hills to ponds, the phases of the moon and its effect on tides, U-shaped valleys formed by glacial erosion, and cumulus clouds associated with thunderstorms.
Weathering and erosion introduction
Weathering breaks down rocks and minerals near Earth's surface through mechanical and chemical processes. Mechanical weathering physically breaks rocks into smaller pieces through frost wedging, thermal expansion and contraction, exfoliation, and abrasion by wind, water, or plant growth. Chemical weathering alters the chemical composition of rocks through dissolving, oxidation, and hydrolysis. Erosion transports weathered materials from their source through agents like water, wind, ice, and gravity, depositing sediments that form new rock layers over time.
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This document discusses radioactive dating methods. It explains that the half-life of a radioactive isotope is the time it takes for half of the nuclei in a sample to decay. Different isotopes have varying half-lives, such as U-238 at 4.5 billion years and I-131 at 8.07 days. Carbon-14 dating is used to date objects that were once alive by measuring the amount of C-14 remaining since it is no longer being replenished after death. The document also provides practice problems applying the concept of half-lives to calculate the ages of samples using different radioactive isotopes and their known half-lives.
Tides (Coyle)
Tides are caused by the gravitational pull of the moon and sun on the Earth's oceans. This creates bulges of water on opposite sides of the Earth that result in regular rises and falls of sea level called tides. The moon has a stronger influence than the sun due to its closer proximity. Tides are strongest in coastal areas and weakest in the open ocean. There are typically two high tides and two low tides each day, known as semidiurnal tides, though some locations only experience one of each, called diurnal tides.
The geologic time scale
The document discusses the Geologic Time Scale which divides Earth's history into units of time based on fossils and rock layers. It describes the four main eras - Precambrian, Paleozoic, Mesozoic, and Cenozoic. The Paleozoic era saw the rise of invertebrates and fish, the Mesozoic was the age of reptiles including dinosaurs, and the Cenozoic is the current era which began after the extinction of the dinosaurs and saw the rise of mammals and humans.
Glacial legacies new
Glaciers covered most of the northeastern United States during the last ice age, leaving behind distinctive geological features. During this time, continental glaciers as thick as a mile advanced as far south as New York. As the glaciers retreated around 10,000 years ago, they sculpted U-shaped valleys, deposited unsorted sediments and erratic boulders, and formed landforms like drumlins, eskers, and moraines that shape the region's landscape today. Evidence of glacial erosion such as striations, polish, and chatter marks can still be seen on exposed bedrock throughout the Northeast.
What’s inside the earth
This document provides information about the structure and composition of the Earth's interior. It discusses that Earth is composed of several layers, including a crust, mantle, outer core, and inner core. The crust and upper mantle form the lithosphere, which is rigid, while the lower mantle and outer core are fluid but can flow over long time periods. Seismic waves and measurements of gravity and magnetic fields provide evidence about the different densities and physical states within Earth. The continents have thick, buoyant crust that floats higher than the thinner, denser oceanic crust in the oceans. Plate tectonics result from convection currents in the mantle driving the movement of tectonic plates at Earth's surface.
Glacial legacies new
At least 4 ice ages occurred where glaciers covered most of New York and Vermont. This included the last continental glacier called the Wisconsin Ice Sheet which covered the area around 20,000 years ago. Evidence of glaciers can still be seen today through features like drumlins, eskers, striations on bedrock, and U-shaped valleys carved out by the ice.
Fossils
Fossils provide evidence about past life on Earth. A fossil forms when an organism is buried after death and the remains are slowly replaced with minerals over millions of years. Fossils give clues about ancient environments and organisms, and help show how life has evolved over time. The fossil record is incomplete as only a small fraction of organisms become fossilized.
Fossils
Fossils provide evidence about past life on Earth. A fossil forms when an organism is buried after death and the remains are slowly replaced with minerals over millions of years. Fossils give clues about ancient environments and organisms, and help show how life has evolved over time. The fossil record is incomplete as only a small fraction of organisms become fossilized.
The geological time scale
The geological time scale records 4.6 billion years of Earth's history divided into eras, periods, and epochs based on studying rock layers and fossils. It begins with the Precambrian era which covers 88% of Earth's history. The timescale includes the Paleozoic era of ancient life dominated by invertebrates like trilobites; the Mesozoic era of middle life dominated by dinosaurs and the breakup of Pangaea; and the ongoing Cenozoic era of recent life dominated by mammals including the evolution of humans.
Phases of the moon
The document discusses phases of the moon, including its distance from Earth, exploration history including Apollo missions, lunar surface features, and common misconceptions. It provides details on lunar phases and how the moon's appearance changes throughout the month due to its orbit and rotation. The document aims to dispel myths including that the far side is always dark, the moon affects behavior, and that it appears larger at the horizon.
Rocks and the rock cycle
1) There are three major types of rock: igneous, sedimentary, and metamorphic.
2) All new rock starts as igneous rock, formed from cooled lava or magma.
3) Igneous rock can be intrusive or extrusive depending on whether the magma cools below or above the surface.
Nature of matter ppt
The document summarizes key concepts about the nature of matter including:
- Matter is anything that has mass and takes up space. Physical properties like color, size and state can be observed without changing the substance.
- Elements are substances made of only one type of atom. Compounds contain two or more elements chemically bonded together.
- Atoms are the basic building blocks of matter and contain protons, neutrons and electrons. The number of protons determines the element.
Why geology rocks
Geology is the scientific study of the origin, history, and structure of the Earth based on observable data and the principle of uniformitarianism. Observable data can be qualitative descriptions or quantitative measurements. In the 17th century, Irish Bishop James Usher estimated the age of the Earth to be around 4004 BC based on biblical accounts, but in the 18th century, Scottish geologist James Hutton developed the principle of uniformitarianism from his observations of rock formations. Modern geology uses both relative dating methods based on principles like superposition and cross-cutting relationships, as well as absolute dating techniques like radiometric dating to determine ages of rocks and the Earth in the billions of years.
Geo sleuth lab presentation
The document is about geological principles such as stratigraphy, unconformities, folding, tilting, and cross-cutting relationships. It contains images and explanations showing layered sedimentary rocks that have been tilted, folded, and cut by younger intrusions. The principles of original horizontality and cross-cutting relationships are used to determine the relative ages of geological events and features.
Radioactive decay honors
The document discusses the three main types of radioactive decay - alpha, beta, and gamma decay. It describes the particles emitted in each type of decay and how they affect the atom. It provides examples of specific radioactive isotopes, their decay processes, and half-lives. It also outlines some medical, industrial, and research applications that make use of different radioactive emitters.
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みなさんこんにちはこれ何文字まで入るの？40文字以下不可とか本当に意味わからないけどこれ限界文字数書いてないからマジでやばい文字数いけるんじゃないの？えこ...
ここ3000字までしか入らないけどタイトルの方がたくさん文字入ると思います。
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Eclipses
- 3. " Here lie the bodies of Ho and Hi, Whose fate, though sad, is risible; Being slain because they could not spy Th' eclipse which was invisible. " Author unknown: Said to refer to the Chinese eclipse of 2136 BC or 2159 BC. " On the day of the new moon, in the month of Hiyar, the Sun was put to shame, and went down in the daytime, with Mars in attendance. " One of the earliest written records of an eclipse of the Sun, on 3 May 1375 BC, found in the city of Ugarit in Mesopotamia.(Reprinted, from Chasing the Shadow , copyright 1994 by Joel K Harris and Richard L Talcott , by permission of Kalmbach Publishing Co. " If the Sun at its rising is like a crescent and wears a crown like the Moon: the king wll capture his enemy's land; evil will leave the land, and (the land) will experience good . . . " Refers to a solar eclipse of 27 May 669 BC. Rasil the older, Babylonian scribe to the king. Quoted in Historical Eclipses and Earth's Rotation , by F Richard Stephenson, Cambridge University Press, 1997, page 125. " Nothing can be surprising any more or impossible or miraculous, now that Zeus, father of the Olympians has made night out of noonday, hiding the bright sunlight, and . . . fear has come upon mankind. After this, men can believe anything, expect anything. Don't any of you be surprised in future if land beasts change places with dolphins and go to live in their salty pastures, and get to like the sounding waves of the sea more than the land, while the dolphins prefer the mountains. " May refer to a total solar eclipse of 6 April 648 BC. Archilochus, Greek poet (c680-640 BC) Quoted in Historical Eclipses and Earth's Rotation , by F Richard Stephenson, Cambridge University Press, 1997, page 338. Partly quoted in Encyclopaedia Britannica CD 98 . ECLIPSE QUOTES
- 5. The shadow of any body consists of two parts: The umbra is where the Sun is completely blocked from view. The penumbra is where the Sun is only partially blocked.
- 6. Moon's shadow on Earth taken by French cosmonaut Jean-Pierre Haigneré aboard the Mir
- 9. Images from Fred Espenak http://www.mreclipse.com/LEphoto/LEgallery1/LEgallery1.html
- 14. Photo of a Total Eclipse http://sunearthday.nasa.gov/2006/multimedia/gal_008.php
- 16. Photos of an Annular Eclipse http://sunearthday.nasa.gov/2006/multimedia/gal_010.php; photos taken by Fred Espenak
Editor's Notes
- This powerpoint compiled by the Education Staff at the Lunar and Planetary Institute www.lpi.usra.edu Image from http://solarsystem.nasa.gov/multimedia/gallery/Earth_Moon.jpg This picture of the Earth and Moon in a single frame, the first of its kind ever taken by a spacecraft, was recorded September 18, 1977, by NASAs Voyager 1 when it was 11.66 million km (7.25 million miles) from Earth. The moon is at the top of the picture and beyond the Earth as viewed by Voyager. In the picture are eastern Asia, the western Pacific Ocean and part of the Arctic. Voyager 1 was directly above Mt. Everest (on the night side of the planet at 25 degrees north latitude) when the picture was taken.
- Total Solar Eclipse showing the corona and a few prominences off the limb (in red). When the moon blocks the light from the bright solar photosphere, we can see the much dimmer, more subtle evidence of the corona.
- Only after phases have been mastered should you try to teach the reason for eclipses; otherwise, students will often assume that the reason for the Moon’s phases is the Earth’s shadow. To understand why we have eclipses, we use the golfballs and blacklights, along with an embroidery hoop to model out the changing intersection of the Moon’s orbit with the ecliptic, as the Earth goes around the Sun.
- Shadow of the moon on the Earth as observed from the MIR space station.
- http://www.mreclipse.com/Special/LEprimer.html Additional details are at http://en.wikipedia.org/wiki/Lunar_eclipse
- Images from Fred Espanak and may be found at http://www.mreclipse.com/LEphoto/LEgallery1/LEgallery1.html
- Diagram from Fred Espenak, may be found along with lots of good information at http://www.mreclipse.com/Special/SEprimer.html
- Diagram by Fred Espenak and more information may be found at www.MrEclipse.com
- This graphic shows the path of totality for different solar eclipses through 2025. Notice there are two solar eclipses that cross the United States (2017 and 2024).
- From http://sunearthday.nasa.gov/2006/multimedia/gal_008.php
- Diagram from Fred Espenak, may be found along with information at http://www.mreclipse.com/Special/SEprimer.html
- From http://sunearthday.nasa.gov/2006/multimedia/gal_010.php; photos taken by Fred Espenak
- Information at http://sunearth.gsfc.nasa.gov/eclipse/solar.html