The mechanism of comet formation

Discussion in 'The Cesspool' started by Fermer05, Feb 23, 2024.

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  1. DaveC426913 Valued Senior Member

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    Half right, half wrong.
    At 29 million km, Mercury does not come close enough to experience sufficent tidal forces to be torn apart - but if it did happen to drift within one million km it would be within the Sun's Roche Limit and disintegrate.

    Is this what passes for science in your country?
    Perhaps your homeland needs to be held back for remedial classes.
     
    Last edited: Mar 15, 2024
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  3. billvon Valued Senior Member

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    It depends on both. If Mercury were in an orbit a similar distance from a neutron star, it would not last long.
    Nope. That has nothing to do with tidal forces.
     
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  5. Fermer05 Registered Senior Member

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    The statement that the Sun's gravity tears comets into fragments is questionable because the tidal force is too weak and depends more on the diameter of the comet than on the distance from the Sun to the comet.
    The sun's gravity will be able to tear the comet into fragments, but only during its capsize. https://en.m.wikipedia.org/wiki/Tidal_force
     
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  7. Pinball1970 Valued Senior Member

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    Your entire premise, the start of your thread is not based on ANY science at all.

    Your own reference contradicted your initial claim.

    Why do you keep ignoring this?

    "Short-period comets originate in the Kuiper belt or its associated scattered disc, which lie beyond the orbit of Neptune. Long-period comets are thought to originate in the Oort cloud, a spherical cloud of icy bodies extending from outside the Kuiper belt to halfway to the nearest star."

    This is NOT discourse, it is trolling. Stop it, this is a SCIENCE website.

    There I said it.
     
  8. billvon Valued Senior Member

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    Nope.

    There are two forces in opposition - gravity (holding the comet together) and tidal forces (pulling the comet apart.) A comet's gravity is almost nonexistent, so it doesn't take much tidal force to pull it apart.

    In addition, there are other secondary forces. The mechanical cohesion of the comet body can help hold it together, although since comets tend to be balls of ice and dust, that is often very close to zero. Melting and sublimation of ice caused by the sun can cause internal pressures that push pieces away from the center - and once a far enough distance away, tidal forces take over and pull the debris away as well.
    Nope. "Capsizing" has nothing to do with it, since most comets don't have much of a spin to begin with.
    Why not read the links you post? You might learn something.
     
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  9. Fermer05 Registered Senior Member

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    Flipping is rotation, and the faster the satellite rotates around the planet, the faster the satellite flips.
    Jupiter's moon Metis orbits every seven hours.
     
  10. billvon Valued Senior Member

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    Using a different word doesn't make it any more true.
    And Neptune is greenish-blue! But the Moon is a very dark gray.
     
  11. DaveC426913 Valued Senior Member

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    And yet ... no flipping.
     
  12. Fermer05 Registered Senior Member

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    Hi all!

    Please read the last edit.

    Mechanics of comet motion.

    A comet is born when a satellite, orbiting a planet during the new moon phase, breaks out of orbit.
    Having left the planet's orbit, the satellite moves against the rotation of the Sun, due to which the centrifugal force of the satellite is reduced, and as a result, the satellite rushes towards the Sun.
    https://en.m.wikipedia.org/wiki/Comet
    If the orbital speed of the satellite is greater than the orbital speed of the planet, then the satellite moves around the Sun in the opposite direction.
    https://en.m.wikipedia.org/wiki/Retrograde_and_prograde_motion
    In the new moon phase, when the orbital speed of the planet and the satellite are equal, the centrifugal force acting on the satellite from the Sun is zero.
    Perhaps for this reason, the Sun's gravity brought fragments of Comet Shoemaker-Levy closer to itself when the comet, orbiting Jupiter, overturned and scattered into fragments. https://en.m.wikipedia.org/wiki/Centrifugal_force
    The eccentricity of a comet's orbit can be expressed using the following formula. E = Vp/Vs.
    Jupiter's orbital speed is 12 km/sec.
    The orbital speed of Jupiter's satellite Metis is 31 km/sec.
    https://www.researchgate.net/figure/Solar-System-Moons-Separations-and-Radii_tbl1_256459609
    Metis, synchronously rotating around Jupiter and its own axis at a speed of one revolution per 7 hours, is slowly approaching Jupiter.
    And everything that rotates, including satellites, has the properties of a gyroscope, maintaining the vertical position of the axis in space regardless of the rotation of the Earth.
    When the axial and orbital speed of the satellite reaches a critical point, the satellite, having the properties of a gyroscope, overturns, due to which the synchronous rotation of the satellite is transformed into asynchronous.
    During a satellite capsize, a centrifugal force appears, due to which the satellite breaks into fragments, like the Shoemaker-Levy comet.
    Further, one part of the satellite fragments leaves orbit, and the other crashes into the planet.
    https://en.m.wikipedia.org/wiki/Comet_Shoemaker–Levy_9
    Perhaps the asteroid belt was formed from the torn apart moons of Jupiter. It is possible that the asteroid belt is located between Jupiter and Saturn.
    https://en.m.wikipedia.org/wiki/Asteroid_belt
    Asteroids, rotating around their axis and in orbit, periodically collide with meteorites, due to which the asteroid, having the properties of a gyroscope, first sways due to a violation of the center of mass, and then overturns, leaves orbit and moves towards the Sun.
    The claim that tidal forces tear apart comets is questionable.
    Because the tidal force is too weak and depends more on the diameter of the comet than on the distance from the Sun to the comet. https://en.m.wikipedia.org/wiki/Tidal_force
    The above can be easily verified by experiment.
    The stability of the orbits of planetary satellites is reduced by orbital resonance and eccentricity.
    Perhaps the gyroscope has other unstudied properties, one of them is the Dzhanibekov effect. https://en.m.wikipedia.org/wiki/Orbital_resonance
    Anticyclones also have gyroscope properties, due to which anticyclones are blocked.
    http://meteoweb.ru/2018/phen20180730.php
     
    Last edited: Mar 16, 2024
  13. origin Heading towards oblivion Valued Senior Member

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    Repeating something that is false does not somehow make it true.
     
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  14. DaveC426913 Valued Senior Member

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    Fermer: this is not how science is done.

    Educate yourself.
     
  15. Fermer05 Registered Senior Member

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    Hi all!

    As a result of the capsize, Jupiter's satellite breaks into fragments, due to which one part of the fragments leaves orbit and moves around the Sun both clockwise and counterclockwise, the other part enters the asteroid belt, and the third crashes into the planet.
     
  16. DaveC426913 Valued Senior Member

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    Reported for being just more trolling nonsense.
     
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  17. billvon Valued Senior Member

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    Which means it . . . has been studied.
    It can easily be proven mathematically. There's even a term for it - the Roche limit.
     

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  18. origin Heading towards oblivion Valued Senior Member

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    Reported for not responding to questions and just soapboxing ridiculous ideas.
     
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  19. Bells Staff Member

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    Mod Note

    Fermer05, you don't really seem keen to discuss anything.

    I can't even say you're posting pseudoscience, as what you are posting just seems like fantasy.

    No.

    This isn't pseudoscience. Because this is patently false and wrong. And you are just reposting the same nonsense over and over again, without even addressing questions raised about your claims.

    Thread closed.
     
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