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Thread: Is there a Long Peroid Comet heading our way?

  1. #1 Is there a Long Peroid Comet heading our way? 
    The Enchanter westwind's Avatar
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    Would the return of a Long Peroid Comet, ( say 2,200 years, Earth years ), be observable 6 months before approaching Planet Earth? What would have to be known to predict an arrival time in Earths Orbit when this Long Peroid Comet is first sighted? Lets assume it's a rather large comet with an extremely long tail and has visited our Solar System many times over the last 20 million years. Is this possible? At the moment I have my eyes on the Sky of a night just in case. westwind.


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  3. #2  
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    Orbit periods that long, and longer, are very possible and have been observed quite few times.


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  4. #3  
    The Enchanter westwind's Avatar
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    For Lynx Fox. Because of the long duration of the Orbit for a long peroid Comet there is every possibility that an external influence, such as entering the gravitational pull of one of the larger Planets, may slightly change the direction of the Orbit. I was specifically thinking of a long term Comet that leaves our Solar System and goes some distance into our GaLaxy. Would a peroid of 2,200 Earth Years enable, time wise, for this Comet to complete this type of orbit. westwind.
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  5. #4  
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    A period of 2200 years remains well within the solar system.

    For example C/ 1995 O1, comet Hale-Bopp, period ~ 2500 years. Aphelion is only 370 AU.

    Sedna, the furthest known Trans Neptunian Object (TNO) has a period of 11,400 years and an aphelion of 937 AU.

    The Oort cloud extends to an estmated ~ 140,000 AU (2 LY), about 150 times further.

    If it goes out "into the galaxy" it's not in orbit; it has been ejected from the solar system. It's no longer in orbit. This happens often.
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  6. #5  
    The Enchanter westwind's Avatar
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    For MeteorWayne. Thanks again. Outside our Solar System is out of Play. OK. What was running through my mind engages the possibility that we have a long term Comet out there in the Solar System that we have very little factual Science recorded. Planet Earth has encounted violence. We cannot say definately that this time has ended. I'm not a Practicing Religious, ( organised ), person. That doesn't mean to say I have no instinctive feelings or experiences that suggest to me that something extroadingly is circulating around out there, out there, out there. Back to the Long Term Comet. The Old Testerment ( sic ), Bible, Joshua I think, I'll look it up again and come back later with Specific Verse and Chapter, tells a story of a violent encounter with a Comet that not only crossed the Earths Orbit, but came close enough to disrupt the Earths Magnetic Fields, exchanging huge Electrical Discharges. According to the memory of this event, it was a time when the Earth literally suffered a violent series of Events and Geological Upheaval. Trying to work out the time of this encounter caused me to Thread this problem. Nearest I can get in estimating History of our Planet was about 6.500 years ago from the Present. Now, does this Comet sstill exist or was the encounter with the Earths System sufficient to change its Orbit away from our Direction? I'll still keep a look out. westwind.
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  7. #6  
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    Please find it when you get a chance. I have no such recollection from my reading of it.
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  8. #7  
    The Enchanter westwind's Avatar
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    For MeteorWayne. To make the Sun appear to be stationary as viewed from Planet Earth, to remain for several hours without the normal expected progress across the firmament to setting time, would require an external influence acting on this Planet Earth. There are many descriptions of this Event from Cultures otherwise reasonably reliable throughout the inhabited parts of Planet Earth, all mentioned and referenced in that non- acceptable Research area by Scientific Circles, namely, dare I name it, Quote "" Worlds in Collision "" end Quote. Author: Immanuel Velikovsky. As you indicate to me, where a referenced and resourced work is not accepted by the Scientific Community for whatever reason (s) than it is difficult to place credence on the work. Will you be angry with me if I tell you that I am very interested in the first 7 Chapters of this work with one major disagreement, namely that the event of the Comet occured in the time of the Exodus of the Israelites from Eygpt. This I believed happened when the Volcanic Eruption occuredat San-ton -inie, An Island North East of Cyprus. Nothing to do with the event of the long term Comet. The Comet event I believe occurred between the 7th and 6th Millimium before the death of Jesus. So I disagree with Velikovsky on this score. You ask for a Joshua Reference, I thought there was a lot more, but all I could locate was the reference to the Stationary Sun etc; Chapter X, verses 11, 12, 13, 14. You dismiss Velikosky's Work? I personally stop reading after the 7th Chapter because I cannot agree with the Venus concept, Martian concept. Too long a Bow. westwind.
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  9. #8  
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    The sun "standing still in the sky" is physically impossible, no matter how many fables state it. Besides, comets are waaaaayyyyyyy tto small to have a significaqnt effect on the earth's orbit.

    However, an impact would be bad news
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  10. #9  
    Universal Mind John Galt's Avatar
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    I thought your post #5 sounded like Velikovsky and your next post confirmed it. Let's suppose that ancient texts do recall one or more impacts/close approaches, there is absolutely no need to ascribe these to a spcific body or group of bodies. We live in a dangerous place. Shit happens.
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  11. #10  
    The Enchanter westwind's Avatar
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    For John Galt. Velikovsky, was not handicaped by lack of mental prowess, but with over optomistic belief that he could overturn much of Scientific Thought regarding Cosmic Events. He possibly suffered from firm delusions fostered by his findings through his medical training, and the Physoanalogy of the state of the human mind. He maybe even believed that his mission here on earth was to enlighten those whose beliefs were contrary to his way of thinking. Being a Jew also would have had some bearing on his research into the event of the Exodus, this leading to an attempt to set the scene that promoted the return of the Jewish People to Israel. I find his Chronology of the time of the Exodus and his gathering of Ancient Legends and Fables describing catastrophic happenings to be at odds with each other. The material gathered from Primitive recall is dealing with oral Events in Tribal Memory banks of a much earlier time, a distant time that I would like to take a stab at. My personal analysis suggests at least 7000 years BC to a longer time of 13000 years Bc. Here I am acting like Velikovsky, speculation only, based on very little factual evidence, but fitting the information available from a lot of Geological evidence. The Event, or catastrophic happenings remembered in the Human Phsyic, was possibly connected to a time when a Comet, long Peroid or otherwise, came a little too close to the Planet Earth. As for ice-core evidence, I am at a loss to explain why there is very little indication of such Events. I cannot support with direct References any of the Speculations mentioned here, but I hope I have added to the Debate. westwind.
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  12. #11  
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    There is really no debate. Velikovsky was deluded, and let his ideas get in the way of real science.
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  13. #12  
    Moderator Moderator Janus's Avatar
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    Quote Originally Posted by westwind View Post
    The Event, or catastrophic happenings remembered in the Human Phsyic, was possibly connected to a time when a Comet, long Peroid or otherwise, came a little too close to the Planet Earth.
    The largest known comet was only ~100 km across, this would give it a mass of ~1/7,000,000,000 of that of the Moon. For an object of that mass to have even the same effect on the Earth as the Moon it would have to pass ~1/9146 as close to the Earth as the Moon (as measured from the center of the Earth). That would put it well below the surface.

    And because comets are so much less dense than the Earth, the Earth would have a much greater disruptive effect on it than it could ever have on the Earth.

    So to repeat, comets are simply too small to have any significant effect on the Earth other than though an actual collision. (And the evidence of a collision with a large comet within a historical time frame would be impossible to miss.)
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  14. #13  
    The Enchanter westwind's Avatar
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    For Janus. I guess this is the real Science of it. I had no idea that Comets had limitations as to size and mass. No direct hit obviously. One question here, not to prolong the debate, but for my own edification, could the Ledgends and Fables that Velikocsky was referring to have included a close encounter with an Asteroid.? westwind.
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  15. #14  
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    Since they really aren't evidence based, they could include anything at all.
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  16. #15  
    Universal Mind John Galt's Avatar
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    There is really no debate. Velikovsky was deluded, and let his ideas get in the way of real science.
    I must object to this mis-characterisation, rather strenuously. Velikovsky was mistaken in his conclusions, but he was not deluded. His investigations were broad ranging, which were their strength and their weakness. The strength was in allowing him to posit a single explanation for a wide range of phenomena and historical anecdote. The weakness was that his ignorance of some important, relevant science led him to the wrong explanation.
    Last edited by John Galt; June 12th, 2012 at 11:13 AM.
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  17. #16  
    Moderator Moderator Janus's Avatar
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    Quote Originally Posted by westwind View Post
    For Janus. I guess this is the real Science of it. I had no idea that Comets had limitations as to size and mass. No direct hit obviously. One question here, not to prolong the debate, but for my own edification, could the Ledgends and Fables that Velikocsky was referring to have included a close encounter with an Asteroid.? westwind.
    Again, let's consider the largest known asteroid(dwarf planet), Ceres, nearly 1000 km across and 1/79 the mass of the Moon. It would have to pass a little less than 1/4 the distance of the Moon, and even this would not be enough to stop the Earth's rotation.

    Also, Ceres passing that close to the Earth would appear to be a bit larger than the Moon itself. This is not something that would have gone unnoticed; even the most casual observer would have noted a second Moon on the sky. No historical account of such an event rule it out.

    In addition, any massive body passing close enough to the Earth to have a significant effect on it would also have a disruptive effect on the orbit of the Moon. Lunar calendars (based on the phases of the Moon) were all the vogue at the time and had been for quite a while. The fact that the civilizations of the time did not have to trash their existing Lunar calendars in favor of a new one that reflected the change in the Lunar orbit is also strong evidence that such a celestial encounter did not take place.
    "Men are apt to mistake the strength of their feelings for the strength of their argument.
    The heated mind resents the chill touch & relentless scrutiny of logic"-W.E. Gladstone


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  18. #17  
    The Enchanter westwind's Avatar
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    You know Janus, this is all very depressing. Observation time is running out for me, and I was hoping for another close encounter to brighten things up. westwind.
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