Why does the earth orbit changes ?

16 Answers

  • 2 weeks ago
  • Anonymous
    3 weeks ago

    It likes to have new scenery. Seeing the same thing all the time is boooring!

  • goring
    Lv 6
    3 weeks ago

    it changes because the sun loses mass continuously=R=GMs/V^2, Ms is the mass of the sun which changes continously.

  • 3 weeks ago

    "Celestial dynamics"  About a 500 plus page book on the matter.

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  • 3 weeks ago

    Because cheech and Chongs theorum

  • Bill-M
    Lv 7
    3 weeks ago

    Gravity.......................Mainly the Sun's Gravity.

  • 3 weeks ago

    Earth has a more or less steady and fixed orbit

    But just like any Orbiting body, its path is usually slightly off centre, rather than eccentric

     Earth's Moon has a Perigee and Apogee in its Orbit around Earth

    Apex means Top, remember that

    Earth, perturbed by other Planets Is heading towards its Perihelion on January 3rd 2020

    Six Months Later, it will be at Apehelion

     The Planet with the Least Eccentric orbit and also the lowest angle of Axis lean, 3 Degrees is the Most Massive Planet in our Solar System is of course Jupiter

    After being formed first before Migrating outwards

     Pluto has the most Eccentric Orbit and its whole System has an Axial Tilt of 90 Degrees

    Like Uranus, it practically rolls around its Orbit

    And Only lost its Planetary Status because of other Bodies in the Kuiper Belt

    Attachment image
    Source(s): New Horizons, Pluto and Charon
  • 3 weeks ago

    Many reasons... the sun is actually losing mass as it ages, and our orbit expands a tiny bit.  The position of Venus, Mars, and Jupiter also affect Earth's orbit, tugging on Earth a tiny bit as they pass by us or we pass by them. Then, there's the cumulative effects of impacts by in-falling meteors; over the course of a year, there's usually slightly more hitting us on our leading edge than our trailing edge. 

  • jehen
    Lv 7
    3 weeks ago

    The earth's orbit is stable and does not change, at least not on any human time scales. But in that stability are many influences (the moon, the other planets, the eccentricity of the orbit, the dynamics of the spinning earth among them) that create predictable, plottable variation. Over millions, billions of years those variations will add up to real change over the orbit we see now. But nothing changes the orbit to any significant degree within the span of human existence.

    • cosmo
      Lv 7
      3 weeks agoReport

      The orbit is not "stable" in the sense that, if it were perturbed it would return to its previous orbit.  The Earth's orbit conserves energy and angular momentum, approximately, and therefore does not change rapidly.  It takes a lot of energy or angular momentum transfer to change it.

  • 3 weeks ago

    it doesn't, to any significant degree.  Any changes are tiny, and are due to the gravitational influences of the other planets, and by tidal effects of the sun. 

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