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  2. Jumping-Jupiter scenario - Wikipedia

    en.wikipedia.org/wiki/Jumping-Jupiter_scenario

    The jumping-Jupiter scenario specifies an evolution of giant-planet migration described by the Nice model, in which an ice giant (an additional Neptune-mass planet) is scattered inward by Saturn and then ejected by Jupiter, causing their semi-major axes to jump, and thereby quickly separating their orbits. [1]

  3. Grand tack hypothesis - Wikipedia

    en.wikipedia.org/wiki/Grand_Tack_Hypothesis

    Jupiter might have shaped the Solar System on its grand tack. In planetary astronomy, the grand tack hypothesis proposes that Jupiter formed at a distance of 3.5 AU from the Sun, then migrated inward to 1.5 AU, before reversing course due to capturing Saturn in an orbital resonance, eventually halting near its current orbit at 5.2 AU.

  4. Nice model - Wikipedia

    en.wikipedia.org/wiki/Nice_model

    The original core of the Nice model is a triplet of papers published in the general science journal Nature in 2005 by an international collaboration of scientists. [4] [5] [6] In these publications, the four authors proposed that after the dissipation of the gas and dust of the primordial Solar System disk, the four giant planets (Jupiter, Saturn, Uranus, and Neptune) were originally found on ...

  5. Five-planet Nice model - Wikipedia

    en.wikipedia.org/wiki/Five-planet_Nice_model

    The extra ice giant enters a Saturn-crossing orbit after its eccentricity increases and is scattered inward by Saturn onto a Jupiter-crossing orbit. Repeated gravitational encounters with the ice giant cause jumps in Jupiter's and Saturn's semi-major axes, driving a step-wise separation of their orbits, and leading to a rapid increase of the ...

  6. When and how to see the 7-planet parade the last week ... - AOL

    www.aol.com/news/see-7-planet-parade-last...

    Jupiter: Look high overhead in the evening and you’ll find the largest planet in our solar system. Saturn: For the first hour after sunset, it’s visible low in the west. Show comments.

  7. Fifth Giant - Wikipedia

    en.wikipedia.org/wiki/Fifth_giant

    The Fifth Giant is a hypothetical ice giant proposed as part of the Five-planet Nice model, an extension of the Nice model of solar system evolution.This hypothesis suggests that the early Solar System once contained a fifth giant planet in addition to the four currently known giant planets: Jupiter, Saturn, Uranus, and Neptune. [1]

  8. Great conjunction - Wikipedia

    en.wikipedia.org/wiki/Great_conjunction

    Saturn's orbit plane is inclined 2.485 degrees relative to Earth's, and Jupiter's is inclined 1.303 degrees. The ascending nodes of both planets are similar (100.6 degrees for Jupiter and 113.7 degrees for Saturn), meaning if Saturn is above or below Earth's orbital plane Jupiter usually is too. Because these nodes align so well it would be ...

  9. Retrogrades Are Finally Coming to a Halt and These 4 Zodiac ...

    www.aol.com/retrogrades-finally-coming-halt-4...

    From Oct. 9, 2024, to Feb. 4, 2025, Jupiter retrograde has urged us to focus on inner growth and to stop us from making rash decisions. Finally, the action planet Mars has been moving backward ...