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  2. Neptune - Wikipedia

    en.wikipedia.org/wiki/Neptune

    There do exist orbits within these empty regions where objects can survive for the age of the Solar System. These resonances occur when Neptune's orbital period is a precise fraction of that of the object, such as 1:2, or 3:4. If, say, an object orbits the Sun once for every two Neptune orbits, it will only complete half an orbit by the time ...

  3. 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 .

  4. Kepler's laws of planetary motion - Wikipedia

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

    The accuracy of this calculation requires that the two dates chosen be along the elliptical orbit's minor axis and that the midpoints of each half be along the major axis. As the two dates chosen here are equinoxes, this will be correct when perihelion, the date the Earth is closest to the Sun, falls on a solstice. The current perihelion, near ...

  5. 2001 KY76 - Wikipedia

    en.wikipedia.org/wiki/2001_KY76

    2001 KY 76, also written 2001 KY76, is a trans-Neptunian object from the Kuiper belt.It is classified as a plutino, a minor planet locked in a 2:3 mean-motion orbital resonance with the planet Neptune.

  6. Template:Orbitbox planet - Wikipedia

    en.wikipedia.org/wiki/Template:Orbitbox_planet

    This template is part of a group of templates that are used to display information about the orbital characteristics of an extrasolar planetary system. The list should always have {{OrbitboxPlanet begin}} as the first in the list, while the list should have {{Orbitbox end}} as the last in the list. This particular template can be used as follows:

  7. Resonant trans-Neptunian object - Wikipedia

    en.wikipedia.org/wiki/Resonant_trans-Neptunian...

    In astronomy, a resonant trans-Neptunian object is a trans-Neptunian object (TNO) in mean-motion orbital resonance with Neptune.The orbital periods of the resonant objects are in a simple integer relations with the period of Neptune, e.g. 1:2, 2:3, etc. Resonant TNOs can be either part of the main Kuiper belt population, or the more distant scattered disc population.

  8. List of gravitationally rounded objects of the Solar System

    en.wikipedia.org/wiki/List_of_gravitationally...

    Rotation period days: 25.38 Orbital period about Galactic Center [4] million years 225–250 Mean orbital speed [4] km/s: ≈ 220 Axial tilt to the ecliptic: deg. 7.25 Axial tilt to the galactic plane: deg. 67.23 Mean surface temperature: K: 5,778 Mean coronal temperature [5] K: 1–2 × 10 6: Photospheric composition H, He, O, C, Fe, S

  9. Transit-timing variation - Wikipedia

    en.wikipedia.org/wiki/Transit-timing_variation

    The transiting planet Kepler-19b shows transit-timing variation with an amplitude of 5 minutes and a period of about 300 days, indicating the presence of a second planet, Kepler-19c, which has a period that is a near-rational multiple of the period of the transiting planet. [8] [9]