by neufer » Tue May 12, 2009 12:56 am
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http://antwrp.gsfc.nasa.gov/apod/ap051115.html wrote:
<<Explanation: Have you ever seen a very bright meteor? Unexpected, [2005]'s Taurid meteor shower resulted in numerous reports of very bright fireballs during the nights surrounding Halloween. Pictured above, a fireball that momentarily rivaled the brightness of the full Moon was caught over Cerro Pachon, Chile by a continuous sky monitor
on November 1, 2005. Several bright Taurid fireballs are identifiable on the sky movie for that night. The above image is a digitally rectangled version of a circular fisheye frame and shows the entire sky, horizon to horizon. The bright meteor was seen swooping between the directions of the Large and Small Magellanic Clouds.
Taurid meteor fireballs are likely pebble sized debris left by Comet Encke.>>
Code: Select all
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Name ↓ Dates ↓ Peak dates ↓ R.A Dec. (km/s) ZHR Rating
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Code: Select all
Northern Taurids 1 Nov. -25 Nov. 12 Nov. 03:52 +22 29 5 Medium
Code: Select all
Southern Taurids 1 Nov. -25 Nov. 5 Nov. 03:28 +13 27 5 Medium
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http://en.wikipedia.org/wiki/Beta_Taurids wrote:
<<The Beta Taurids are an annual meteor shower belonging to a class of "daytime showers" that peak after sunrise. The Beta Taurids are normally active from
June 5 to July 18. They emanate from an average radiant of RA=5h18m, DECL=+21.2 deg and exhibit maximum activity around June 29 (Solar Longitude=98.3 deg). The maximum hourly rate typically reaches about 25 as seen on radar. This shower split off from the main Taurids shower thousands of years ago due to a planetary encounter.>>
Tunguska: The Largest Recent Impact Event : 1908 June 30
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http://en.wikipedia.org/wiki/Taurid wrote:
<<The Taurids are an annual meteor shower associated with the comet Encke. They are named after their radiant point in the constellation Taurus, where they are seen to come from in the sky. Because of their occurrence in late October and early November, they are also called Halloween fireballs.
Encke and the Taurids are believed to be remnants of a much larger comet, which has disintegrated over the past 20,000 to 30,000 years, breaking into several pieces and releasing material by normal cometary activity or perhaps occasionally by close encounters with the gravitational field of Earth or other planets (Whipple, 1940; Klačka, 1999). In total, this stream of matter is the largest in the inner solar system. Due to the stream's size, the Earth takes several weeks to pass through it, causing an extended period of meteor activity, compared with the much smaller periods of activity in other showers. The Taurids are also made up of weightier material, pebbles instead of dust grains.
Typically, Taurids appear at a rate of about 7 per hour, moving slowly across the sky at about 27 kilometers per second. If large enough, these meteors may become bolides, with spectacular light shows and even audible sound.
Due to the gravitational effect of planets, especially Jupiter, the Taurids have spread out over time, allowing separate segments labeled the Northern Taurids and Southern Taurids to become observable. Essentially these are two cross sections of a single, broad, continuous stream in space. The Beta Taurids, encountered by the Earth in June/July and which many astronomers consider the cause of the Tunguska event, are also a cross section of the stream. Beta Taurids approach from the Earth's daytime side; so cannot be observed visually in the way the (night-time) Northern and Southern Taurids of October/November can.
The Taurid stream has a cycle of activity that peaks roughly every 2500 to 3000 years, when its core passes nearer to Earth and produces more intense showers. In fact, because of the separate "branches" (night-time in one part of the year and daytime in another; and Northern/Southern in each case) there are two (possibly overlapping) peaks separated by a few centuries, every 3000 years. Some astronomers note that dates for megalith structures such as Stonehenge are associated with these peaks.
The next peak is expected around 3000 AD, suggesting that the Taurids may also be responsible for the Star of Bethlehem. It has been suggested that in 1 AD, there were Taurid meteor showers due to the Encke tail encountering Earth and breaking up.
The Taurids also have more frequent peaks which may result from a heavier concentration of material in the stream, which only hits Earth during some passes.
Some consider the Bronze Age breakup of the originally larger comet to be responsible for ancient destruction in the Fertile Crescent, perhaps evidenced by a large meteor crater in Iraq. Origin of the swastika has also been connected with Comet Encke. However The bronze age was approximately 6000 years ago and the original break up of the parent comet, as mentioned above, occurred long before that. Ancient Peoples may have been used to Tunguska Class impacts which occur approximately every 300 years as calculated by Eugene Shoemaker and Krakatoa type eruptions both of which have widespread climatic effects and which would dwarf any climatic effects from the slight increase in upper atmospheric dust caused by Bolides due to passing through the tail of Comet Encke.
Meteor impact on the Moon
An impact event was observed by NASA scientist Rob Suggs and astronomer Bill Cooke while testing out a new 10-in telescope and video camera they had assembled to monitor the moon for meteor strikes. After consulting star charts they concluded that the impact body was probably part of the Taurid meteor shower. This may well be the first recording of this type of lunar event which some have claimed to have witnessed in the past.
Taurids and UFOs
During the week ending November 4, 2005, the large number of fireballs seen all over the world led some to suggest UFO visitations. These fireballs may have been space junk or the Taurids.>>
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http://antwrp.gsfc.nasa.gov/apod/ap031223.html wrote:
Explanation: It's back. Every 3.3 years, Comet Encke swoops back into our inner Solar System. First officially discovered in 1786, Comet Encke is on its 59th documented return, making it one of the best-studied comets on the sky. Mysteriously, Comet Encke should have been discovered millennia earlier, since it likely became bright enough to see unaided many times over the past few thousand years. Comet Encke's elliptical trajectory reaches from outside the orbit of Mars to inside the orbit of Mercury. It passed relatively close to the Earth on Nov. 17 and will reach its closest to the Sun on Dec 29. Recent observations place Comet Encke as bright as visual magnitude six during early December, making it just on the verge of unaided human vision.
http://antwrp.gsfc.nasa.gov/apod/ap071003.html>>
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http://en.wikipedia.org/wiki/2P/Encke#Meteor_showers wrote:
Comet Encke or Encke's Comet (official designation: 2P/Encke) is a periodic comet that completes an orbit of the sun once every three years — the shortest period of any known comet. It was first recorded by Pierre Méchain in 1786, but it was not recognized as a periodic comet until 1819 when its orbit was computed by Johann Franz Encke; like Halley's Comet, it is unusual in being named after the calculator of its orbit rather than its discoverer.
As its official designation implies, Encke's Comet was the second periodic comet discovered after Halley's Comet (designated 1P/Halley). Its orbit was calculated by Johann Franz Encke, who, through laborious calculations was able to link observations of comets in 1786 (designated 2P/1786 B1), 1795 (2P/1795 V1), 1805 (2P/1805 U1) and 1818 (2P/1818 W1) to the same object. In 1819 he published his conclusions in the journal Correspondance astronomique, and predicted correctly its return in 1822 (2P/1822 L1).
More than one theory has associated Encke's Comet with impacts of cometary material on Earth, and with cultural significance.
The Tunguska event of 1908, likely caused by the impact of a cometary body, has also been postulated by a Czechoslovak astronomer as a fragment of Comet Encke.
A Han Dynasty silk comet atlas, featuring drawings of comets believed by Victor Clube
and Bill Napier to be related to the breakup of Encke's Comet in the past
A theory holds that the ancient symbol of the swastika appeared in a variety of cultures across the world at a similar time, and could have been inspired by the appearance of a comet from head on, as the curved jets would be reminiscent of the swastika shape. Comet Encke has sometimes been identified as the comet in question. In their 1982 book Cosmic Serpent (page 155) Victor Clube and Bill Napier reproduce an ancient Chinese catalogue of cometary shapes from the Mawangdui Silk Texts, which includes a swastika-shaped comet, and suggest that some of the comet drawings were related to the breakup of the progenitor of Encke and the Taurid meteoroid stream. Fred Whipple in his The Mystery of Comets (1985, page 163) points out that Comet Encke's polar axis is only 5 degrees from its orbital plane: such an orientation is ideal to have presented a pinwheel like aspect to our ancestors when Encke was more active.
GoogleEarth satellite image of Umm al Binni Lake in southern Iraq
The ruler line represents a distance of two miles.
Theorists arguing that the Bronze Age collapse of several civilizations in the Fertile Crescent was caused by a meteoric impact (perhaps evidenced by a large (unconfirmed) meteorite crater in Iraq identified as Umm al Binni lake) have suggested that Encke's Comet is the remnant of the breakup of a larger body that produced the impactor.>>
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http://en.wikipedia.org/wiki/Umm_al_binni_lake wrote:
<<Using satellite imagery, Master (2001, 2002) suggests the 3.4 km diameter dry lake may be an impact crater based on its nearly circular, slightly polygonal shape, rim shape, and contrasting shape to other lakes in the region. As to its origin, Master rules out Karst solution, salt doming, tectonic deformation, and igneous intrusion as well as possible bombing or man-made origins of the structure. Master estimates the age of the crater to be <5,000 years, due to the deposition of sediments of the Tigris-Euphrates plain as a result of the 130-150 km seaward progradation of the Persian Gulf during that time period. A lack of writings describing this event by contemporary authors, such as Herodotus (484-425 BC) and Nearchus (360-300 BC) or later historians, suggests the impact may have taken place between 3000 and 5000 years BP. During this time period, the Al Amarah region was under the Persian Gulf at a depth of approximately 10 m. Impact induced tsunamis would have devastated coastal Sumerian cities. This may provide an alternate origin of the 2.6 m sediment layer discovered during an excavation of the Sumerian city of Ur by Leonard Wooley in 1954.
- Descriptive passages in The Epic of Gilgamesh (circa 1600-1800 BCE) may
describe such an impact and tsunami, suggesting a link to the Sumerian Deluge:
...and the seven judges of Hell, the Annunaki, raised their torches, lighting the land with their livid flame. A stupor of despair went up to heaven when the god of the storm turned daylight into darkness, when he smashed the land like a cup. One whole day the tempest raged, gathering fury as it went, it poured over the people like tides of battle; a man could not see his brother nor the people be seen from heaven. Even the gods were terrified at the flood, they fled to the highest heaven, the firmament of Anu; they crouched against the walls, cowering like curs.>>
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[quote=" http://antwrp.gsfc.nasa.gov/apod/ap051115.html"]
<<Explanation: Have you ever seen a very bright meteor? Unexpected, [2005]'s Taurid meteor shower resulted in numerous reports of very bright fireballs during the nights surrounding Halloween. Pictured above, a fireball that momentarily rivaled the brightness of the full Moon was caught over Cerro Pachon, Chile by a continuous sky monitor [b]on November 1, 2005[/b]. Several bright Taurid fireballs are identifiable on the sky movie for that night. The above image is a digitally rectangled version of a circular fisheye frame and shows the entire sky, horizon to horizon. The bright meteor was seen swooping between the directions of the Large and Small Magellanic Clouds.
[b]Taurid meteor fireballs are likely pebble sized debris left by Comet Encke.[/b]>>[/quote]
[code]---------------------------------------------------------------------------------------------------
Name ↓ Dates ↓ Peak dates ↓ R.A Dec. (km/s) ZHR Rating
---------------------------------------------------------------------------------------------------[/code]
[b][color=#80BFFF]NTA:[/color] Minor planet 2004 TG10 and others[/b]
[code]Northern Taurids 1 Nov. -25 Nov. 12 Nov. 03:52 +22 29 5 Medium[/code]
[b][color=#80BFFF]STA:[/color] http://en.wikipedia.org/wiki/2P/Encke[/b]
[code]Southern Taurids 1 Nov. -25 Nov. 5 Nov. 03:28 +13 27 5 Medium[/code]--------------------------------------------------------------------------------------------------
[quote=" http://en.wikipedia.org/wiki/Beta_Taurids"]
<<The Beta Taurids are an annual meteor shower belonging to a class of "daytime showers" that peak after sunrise. The Beta Taurids are normally active from [b]June 5 to July 18[/b]. They emanate from an average radiant of RA=5h18m, DECL=+21.2 deg and exhibit maximum activity around June 29 (Solar Longitude=98.3 deg). The maximum hourly rate typically reaches about 25 as seen on radar. This shower split off from the main Taurids shower thousands of years ago due to a planetary encounter.>>[/quote]
[url=http://antwrp.gsfc.nasa.gov/apod/ap071114.html][b]Tunguska: The Largest Recent Impact Event : 1908 June 30[/b][/url]
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[quote=" http://en.wikipedia.org/wiki/Taurid"]
<<The Taurids are an annual meteor shower associated with the comet Encke. They are named after their radiant point in the constellation Taurus, where they are seen to come from in the sky. Because of their occurrence in late October and early November, they are also called Halloween fireballs.
Encke and the Taurids are believed to be remnants of a much larger comet, which has disintegrated over the past 20,000 to 30,000 years, breaking into several pieces and releasing material by normal cometary activity or perhaps occasionally by close encounters with the gravitational field of Earth or other planets (Whipple, 1940; Klačka, 1999). In total, this stream of matter is the largest in the inner solar system. Due to the stream's size, the Earth takes several weeks to pass through it, causing an extended period of meteor activity, compared with the much smaller periods of activity in other showers. The Taurids are also made up of weightier material, pebbles instead of dust grains.
Typically, Taurids appear at a rate of about 7 per hour, moving slowly across the sky at about 27 kilometers per second. If large enough, these meteors may become bolides, with spectacular light shows and even audible sound.
Due to the gravitational effect of planets, especially Jupiter, the Taurids have spread out over time, allowing separate segments labeled the Northern Taurids and Southern Taurids to become observable. Essentially these are two cross sections of a single, broad, continuous stream in space. The Beta Taurids, encountered by the Earth in June/July and which many astronomers consider the cause of the Tunguska event, are also a cross section of the stream. Beta Taurids approach from the Earth's daytime side; so cannot be observed visually in the way the (night-time) Northern and Southern Taurids of October/November can.
The Taurid stream has a cycle of activity that peaks roughly every 2500 to 3000 years, when its core passes nearer to Earth and produces more intense showers. In fact, because of the separate "branches" (night-time in one part of the year and daytime in another; and Northern/Southern in each case) there are two (possibly overlapping) peaks separated by a few centuries, every 3000 years. Some astronomers note that dates for megalith structures such as Stonehenge are associated with these peaks.
The next peak is expected around 3000 AD, suggesting that the Taurids may also be responsible for the Star of Bethlehem. It has been suggested that in 1 AD, there were Taurid meteor showers due to the Encke tail encountering Earth and breaking up.
The Taurids also have more frequent peaks which may result from a heavier concentration of material in the stream, which only hits Earth during some passes.
Some consider the Bronze Age breakup of the originally larger comet to be responsible for ancient destruction in the Fertile Crescent, perhaps evidenced by a large meteor crater in Iraq. Origin of the swastika has also been connected with Comet Encke. However The bronze age was approximately 6000 years ago and the original break up of the parent comet, as mentioned above, occurred long before that. Ancient Peoples may have been used to Tunguska Class impacts which occur approximately every 300 years as calculated by Eugene Shoemaker and Krakatoa type eruptions both of which have widespread climatic effects and which would dwarf any climatic effects from the slight increase in upper atmospheric dust caused by Bolides due to passing through the tail of Comet Encke.
Meteor impact on the Moon
An impact event was observed by NASA scientist Rob Suggs and astronomer Bill Cooke while testing out a new 10-in telescope and video camera they had assembled to monitor the moon for meteor strikes. After consulting star charts they concluded that the impact body was probably part of the Taurid meteor shower. This may well be the first recording of this type of lunar event which some have claimed to have witnessed in the past.
Taurids and UFOs
During the week ending November 4, 2005, the large number of fireballs seen all over the world led some to suggest UFO visitations. These fireballs may have been space junk or the Taurids.>>[/quote]--------------------------------------------------------------------------------------------------
[quote=" http://antwrp.gsfc.nasa.gov/apod/ap031223.html"]
Explanation: It's back. Every 3.3 years, Comet Encke swoops back into our inner Solar System. First officially discovered in 1786, Comet Encke is on its 59th documented return, making it one of the best-studied comets on the sky. Mysteriously, Comet Encke should have been discovered millennia earlier, since it likely became bright enough to see unaided many times over the past few thousand years. Comet Encke's elliptical trajectory reaches from outside the orbit of Mars to inside the orbit of Mercury. It passed relatively close to the Earth on Nov. 17 and will reach its closest to the Sun on Dec 29. Recent observations place Comet Encke as bright as visual magnitude six during early December, making it just on the verge of unaided human vision.
[b] http://antwrp.gsfc.nasa.gov/apod/ap071003.html[/b]>>[/quote]--------------------------------------------------------------------------------------------------
[quote=" http://en.wikipedia.org/wiki/2P/Encke#Meteor_showers"]
Comet Encke or Encke's Comet (official designation: 2P/Encke) is a periodic comet that completes an orbit of the sun once every three years — the shortest period of any known comet. It was first recorded by Pierre Méchain in 1786, but it was not recognized as a periodic comet until 1819 when its orbit was computed by Johann Franz Encke; like Halley's Comet, it is unusual in being named after the calculator of its orbit rather than its discoverer.
As its official designation implies, Encke's Comet was the second periodic comet discovered after Halley's Comet (designated 1P/Halley). Its orbit was calculated by Johann Franz Encke, who, through laborious calculations was able to link observations of comets in 1786 (designated 2P/1786 B1), 1795 (2P/1795 V1), 1805 (2P/1805 U1) and 1818 (2P/1818 W1) to the same object. In 1819 he published his conclusions in the journal Correspondance astronomique, and predicted correctly its return in 1822 (2P/1822 L1).
More than one theory has associated Encke's Comet with impacts of cometary material on Earth, and with cultural significance.
The Tunguska event of 1908, likely caused by the impact of a cometary body, has also been postulated by a Czechoslovak astronomer as a fragment of Comet Encke.
[url=http://en.wikipedia.org/wiki/File:Hansilk2.png][b]A Han Dynasty silk comet atlas[/b][/url], featuring drawings of comets believed by Victor Clube
and Bill Napier to be related to the breakup of Encke's Comet in the past
[img]http://www.briansprediction.com/dd/4058.h35.gif[/img]
A theory holds that the ancient symbol of the swastika appeared in a variety of cultures across the world at a similar time, and could have been inspired by the appearance of a comet from head on, as the curved jets would be reminiscent of the swastika shape. Comet Encke has sometimes been identified as the comet in question. In their 1982 book Cosmic Serpent (page 155) Victor Clube and Bill Napier reproduce an ancient Chinese catalogue of cometary shapes from the Mawangdui Silk Texts, which includes a swastika-shaped comet, and suggest that some of the comet drawings were related to the breakup of the progenitor of Encke and the Taurid meteoroid stream. Fred Whipple in his The Mystery of Comets (1985, page 163) points out that Comet Encke's polar axis is only 5 degrees from its orbital plane: such an orientation is ideal to have presented a pinwheel like aspect to our ancestors when Encke was more active.
[b]GoogleEarth satellite image of Umm al Binni Lake in southern Iraq
The ruler line represents a distance of two miles. [/b]
[img]http://www.datasync.com/~rsf1/UaB.jpg[/img]
Theorists arguing that the Bronze Age collapse of several civilizations in the Fertile Crescent was caused by a meteoric impact (perhaps evidenced by a large (unconfirmed) meteorite crater in Iraq identified as Umm al Binni lake) have suggested that Encke's Comet is the remnant of the breakup of a larger body that produced the impactor.>>[/quote]--------------------------------------------------------------------------------------------------
[quote=" http://en.wikipedia.org/wiki/Umm_al_binni_lake"]
<<Using satellite imagery, Master (2001, 2002) suggests the 3.4 km diameter dry lake may be an impact crater based on its nearly circular, slightly polygonal shape, rim shape, and contrasting shape to other lakes in the region. As to its origin, Master rules out Karst solution, salt doming, tectonic deformation, and igneous intrusion as well as possible bombing or man-made origins of the structure. Master estimates the age of the crater to be <5,000 years, due to the deposition of sediments of the Tigris-Euphrates plain as a result of the 130-150 km seaward progradation of the Persian Gulf during that time period. A lack of writings describing this event by contemporary authors, such as Herodotus (484-425 BC) and Nearchus (360-300 BC) or later historians, suggests the impact may have taken place between 3000 and 5000 years BP. During this time period, the Al Amarah region was under the Persian Gulf at a depth of approximately 10 m. Impact induced tsunamis would have devastated coastal Sumerian cities. This may provide an alternate origin of the 2.6 m sediment layer discovered during an excavation of the Sumerian city of Ur by Leonard Wooley in 1954.
[list]Descriptive passages in The Epic of Gilgamesh (circa 1600-1800 BCE) may
describe such an impact and tsunami, suggesting a link to the Sumerian Deluge:[b]
...and the seven judges of Hell, the Annunaki, raised their torches, lighting the land with their livid flame. A stupor of despair went up to heaven when the god of the storm turned daylight into darkness, when he smashed the land like a cup. One whole day the tempest raged, gathering fury as it went, it poured over the people like tides of battle; a man could not see his brother nor the people be seen from heaven. Even the gods were terrified at the flood, they fled to the highest heaven, the firmament of Anu; they crouched against the walls, cowering like curs.[/b]>>[/list][/quote]