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  2. Solex (software) - Wikipedia

    en.wikipedia.org/wiki/SOLEX_(software)

    SOLEX is a free computer application that calculates and displays the positions and dynamics of bodies that are part of the Solar System.It was developed by Aldo Vitagliano, a professor of inorganic chemistry at the Federico II University of Naples.

  3. Kepler's laws of planetary motion - Wikipedia

    en.wikipedia.org/wiki/Kepler's_laws_of_planetary...

    Despite being correct in saying that the planets revolved around the Sun, Copernicus was incorrect in defining their orbits. Introducing physical explanations for movement in space beyond just geometry, Kepler correctly defined the orbit of planets as follows: [1] [2] [5]: 53–54 The planetary orbit is not a circle with epicycles, but an ellipse.

  4. File:Animation of the planetary system around Sun-like star ...

    en.wikipedia.org/wiki/File:Animation_of_the...

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  5. Newton's theorem of revolving orbits - Wikipedia

    en.wikipedia.org/wiki/Newton's_theorem_of...

    Conversely, the closed trajectory is called a subharmonic orbit if k is the inverse of an integer, i.e., if m = 1 in the formula k = m/n. For example, if k = 1/3 (green planet in Figure 5, green orbit in Figure 10), the resulting orbit is called the third subharmonic of the original orbit. Although such orbits are unlikely to occur in nature ...

  6. Solar System - Wikipedia

    en.wikipedia.org/wiki/Solar_System

    Animations of the Solar System's outer planets orbiting. This animation is 100 times faster than the inner planet animation. The planets and other large objects in orbit around the Sun lie near the plane of Earth's orbit, known as the ecliptic. Smaller icy objects such as comets frequently orbit at significantly greater angles to this plane.

  7. Orbital period - Wikipedia

    en.wikipedia.org/wiki/Orbital_period

    The orbital period (also revolution period) is the amount of time a given astronomical object takes to complete one orbit around another object. In astronomy, it usually applies to planets or asteroids orbiting the Sun, moons orbiting planets, exoplanets orbiting other stars, or binary stars.

  8. Interplanetary Transport Network - Wikipedia

    en.wikipedia.org/wiki/Interplanetary_Transport...

    For any two bodies in which one body orbits around the other, such as a star/planet or planet/moon system, there are five such points, denoted L 1 through L 5. For instance, the Earth–Moon L 1 point lies on a line between the two, where gravitational forces between them exactly balance with the centrifugal force of an object placed in orbit ...

  9. Orrery - Wikipedia

    en.wikipedia.org/wiki/Orrery

    Typically the Earth will circle the Sun in one minute, while the other planets will complete an orbit in time periods proportional to their actual motion. Thus Venus, which takes 224.7 days to orbit the Sun, will take 37 seconds to complete an orbit on an orrery, and Jupiter will take 11 minutes, 52 seconds.