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Hilda asteroid

Index Hilda asteroid

The Hilda asteroids (adj. Hildian) are a dynamical group of asteroids in a 3:2 orbital resonance with Jupiter. [1]

32 relations: Apsis, Asteroid, Asteroid belt, Asteroid family, Astronomical unit, C-type asteroid, Comet, Conjunction (astronomy), D-type asteroid, Ecliptic, Equilateral triangle, Jupiter, Jupiter trojan, Kepler's laws of planetary motion, Lagrangian point, List of minor-planet groups, Monthly Notices of the Royal Astronomical Society, Near-Earth object, Orbit, Orbital eccentricity, Orbital inclination, Orbital period, Orbital resonance, P-type asteroid, Perihelion and aphelion, Planet, Retrograde and prograde motion, Semi-major and semi-minor axes, Sun, Trojan (astronomy), 153 Hilda, 1911 Schubart.


An apsis (ἁψίς; plural apsides, Greek: ἁψῖδες) is an extreme point in the orbit of an object.

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Asteroids are minor planets, especially those of the inner Solar System.

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Asteroid belt

The asteroid belt is the circumstellar disc in the Solar System located roughly between the orbits of the planets Mars and Jupiter.

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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.

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Astronomical unit

The astronomical unit (symbol: au, ua, or AU) is a unit of length, roughly the distance from Earth to the Sun.

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C-type asteroid

C-type (carbonaceous) asteroids are the most common variety, forming around 75% of known asteroids.

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A comet is an icy small Solar System body that, when passing close to the Sun, warms and begins to release gases, a process called outgassing.

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Conjunction (astronomy)

In astronomy, a conjunction occurs when two astronomical objects or spacecraft have either the same right ascension or the same ecliptic longitude, usually as observed from Earth.

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D-type asteroid

D-type asteroids have a very low albedo and a featureless reddish spectrum.

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The ecliptic is the circular path on the celestial sphere that the Sun follows over the course of a year; it is the basis of the ecliptic coordinate system.

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Equilateral triangle

In geometry, an equilateral triangle is a triangle in which all three sides are equal.

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

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Jupiter trojan

The Jupiter trojans, commonly called Trojan asteroids or just Trojans, are a large group of asteroids that share the planet Jupiter's orbit around the Sun.

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Kepler's laws of planetary motion

In astronomy, Kepler's laws of planetary motion are three scientific laws describing the motion of planets around the Sun.

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Lagrangian point

In celestial mechanics, the Lagrangian points (also Lagrange points, L-points, or libration points) are positions in an orbital configuration of two large bodies, wherein a small object, affected only by the gravitational forces from the two larger objects, will maintain its position relative to them.

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List of minor-planet groups

A minor-planet group is a population of minor planets that share broadly similar orbits.

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Monthly Notices of the Royal Astronomical Society

Monthly Notices of the Royal Astronomical Society (MNRAS) is a peer-reviewed scientific journal covering research in astronomy and astrophysics.

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Near-Earth object

A near-Earth object (NEO) is any small Solar System body whose orbit can bring it into proximity with Earth.

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In physics, an orbit is the gravitationally curved trajectory of an object, such as the trajectory of a planet around a star or a natural satellite around a planet.

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Orbital eccentricity

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

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Orbital inclination

Orbital inclination measures the tilt of an object's orbit around a celestial body.

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Orbital period

The orbital period is the time a given astronomical object takes to complete one orbit around another object, and applies in astronomy usually to planets or asteroids orbiting the Sun, moons orbiting planets, exoplanets orbiting other stars, or binary stars.

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Orbital resonance

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

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P-type asteroid

P-type asteroids have low albedo and a featureless reddish spectrum.

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Perihelion and aphelion

The perihelion of any orbit of a celestial body about the Sun is the point where the body comes nearest to the Sun.

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A planet is an astronomical body orbiting a star or stellar remnant that is massive enough to be rounded by its own gravity, is not massive enough to cause thermonuclear fusion, and has cleared its neighbouring region of planetesimals.

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Retrograde and prograde motion

Retrograde motion in astronomy is, in general, orbital or rotational motion of an object in the direction opposite the rotation of its primary, that is the central object (right figure).

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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 widest points of the perimeter.

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The Sun is the star at the center of the Solar System.

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Trojan (astronomy)

In astronomy, a trojan is a minor planet or moon that shares the orbit of a planet or larger moon, wherein the trojan remains in the same, stable position relative to the larger object.

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153 Hilda

153 Hilda is a large asteroid in the outer main belt, with a diameter of 170 km.

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1911 Schubart

1911 Schubart, provisional designation, is a dark Hildian asteroid and parent body of the Schubart family, located in the outermost region of the asteroid belt, approximately 70 kilometers in diameter.

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Hilda asteroids, Hilda family, Hilda group, Hildas, Hildas asteroid, Hildian asteroid, Hildian asteroids.


[1] https://en.wikipedia.org/wiki/Hilda_asteroid

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