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Kirkwood gap, the Glossary

A Kirkwood gap is a gap or dip in the distribution of the semi-major axes (or equivalently of the orbital periods) of the orbits of main-belt asteroids.^[1]

25 relations: Alinda asteroid, Asteroid, Asteroid belt, Asteroid family, Astronomical unit, Canonsburg, Pennsylvania, Ceres (dwarf planet), Cybele asteroids, Daniel Kirkwood, Hecuba-gap asteroid, Hilda asteroid, Jupiter, Nice model, Orbital eccentricity, Orbital period, Orbital resonance, Secular resonance, Semi-major and semi-minor axes, University of Pittsburgh Press, Washington & Jefferson College, 10 Hygiea, 2 Pallas, 279 Thule, 4 Vesta, 87 Sylvia.
Asteroids
Resonance with Jupiter

Alinda asteroid

The Alinda asteroids are a dynamical group of asteroids with a semi-major axis of about 2.5 AU and an orbital eccentricity approximately between 0.4 and 0.65.

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Asteroid

An asteroid is a minor planet—an object that is neither a true planet nor an identified comet— that orbits within the inner Solar System. Kirkwood gap and asteroid are asteroids.

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The asteroid belt is a torus-shaped region in the Solar System, centered on the Sun and roughly spanning the space between the orbits of the planets Jupiter and Mars. Kirkwood gap and asteroid belt are asteroids.

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Asteroid family

An asteroid family is a population of asteroids that share similar proper orbital elements, such as semimajor axis, eccentricity, and orbital inclination. Kirkwood gap and asteroid family are asteroids.

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Astronomical unit

The astronomical unit (symbol: au, or AU) is a unit of length defined to be exactly equal to.

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Canonsburg, Pennsylvania

Canonsburg is a borough in Washington County, Pennsylvania, United States, southwest of Pittsburgh.

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Ceres (dwarf planet)

Ceres (minor-planet designation: 1 Ceres) is a dwarf planet in the middle main asteroid belt between the orbits of Mars and Jupiter.

See Kirkwood gap and Ceres (dwarf planet)

Cybele asteroids

The Cybele asteroids (also known as the "Cybeles") are a dynamical group of asteroids, named after the asteroid 65 Cybele. Kirkwood gap and Cybele asteroids are resonance with Jupiter.

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Daniel Kirkwood

Daniel Kirkwood (September 27, 1814 – June 11, 1895) was an American astronomer.

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Hecuba-gap asteroid

A Hecuba-gap asteroid is a member of a dynamical group of resonant asteroids located in the Hecuba gap at 3.27 AU – one of the largest Kirkwood gaps in the asteroid belt, which is considered the borderline separating the outer main belt asteroids from the Cybeles.

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Hilda asteroid

The Hilda asteroids (adj. Hildian) are a dynamical group of more than 5,000 asteroids located beyond the asteroid belt but within Jupiter's orbit, in a 3:2 orbital resonance with Jupiter.

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Jupiter

Jupiter is the fifth planet from the Sun and the largest in the Solar System.

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Nice model

The Nice model is a scenario for the dynamical evolution of the Solar System.

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Orbital eccentricity

In astrodynamics, the orbital eccentricity of an astronomical object is a dimensionless parameter that determines the amount by which its orbit around another body deviates from a perfect circle.

See Kirkwood gap and Orbital eccentricity

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.

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Orbital resonance

In celestial mechanics, orbital resonance occurs when orbiting bodies exert regular, periodic gravitational influence on each other, usually because their orbital periods are related by a ratio of small integers.

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Secular resonance

A secular resonance is a type of orbital resonance between two bodies with synchronized precessional frequencies.

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Semi-major and semi-minor axes

In geometry, the major axis of an ellipse is its longest diameter: a line segment that runs through the center and both foci, with ends at the two most widely separated points of the perimeter.

See Kirkwood gap and Semi-major and semi-minor axes