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Asteroid Group list
List started by
gmackenz
for the Astronomy domain
An asteroid group consists of a set of minor planets that have a relatively loose dynamical associations. Members of a group can be unrelated to each...
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| x name | x image | x Also Typed With | x Asteroid Group Founding Member | x Asteroid Group Members | x article |
|---|---|---|---|---|---|
| Vulcanoid asteroid |
Vulcanoids are a hypothetical group of asteroid that may orbit in a dynamically stable zone between 0.08 and 0.21 astronomical unit from the Sun, well within the orbit of Mercury. They take their name from the hypothetical planet Vulcan, which...
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| Apohele asteroid | Asteroid |
Apohele asteroids are a subclass of Aten asteroid. They have not only their perihelion at less than one AU (within Earth's orbit), but also their aphelion; that is, their entire orbit is within Earth's.
As of March 2008 there are only five...
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| Venus-crosser asteroid |
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A Venus-crosser asteroid is an asteroid whose orbit crosses that of Venus. The known numbered Venus-crossers and outer-grazers (marked †) are listed below (Mercury-crossers or grazers are marked ‡).
Venus also has a quasi-satellite, 2002 VE. This...
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| Mercury-crosser asteroid | |||||
| Aten asteroid | Asteroid |
The Aten asteroids are a group of near-Earth asteroid, named after the first of the group to be discovered (2062 Aten, discovered January 7, 1976 by Eleanor F. Helin). They are defined by having semi-major axes of less than one astronomical unit ...
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| Earth-crosser asteroid |
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An Earth-crosser asteroid is a Near-Earth asteroid whose orbit crosses that of Earth. The known numbered Earth-crossers are listed here. Those Earth-crossers whose semi-major axes are smaller than Earth's are Aten asteroid; the remaining ones are...
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| Apollo asteroid |
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Asteroid |
The Apollo asteroids are a group of near-Earth asteroid named after 1862 Apollo, the first asteroid of this group to be discovered by Karl Wilhelm Reinmuth. They are Earth-crosser asteroid that have orbital semi-major axes greater than that of the...
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| Arjuna asteroid | Asteroid |
The Arjuna asteroid are a class of near-Earth asteroid whose orbit are very Earth-like in character, having low inclination, orbital periods close to one Earth year, and low eccentricity. The class is named after Arjuna, a central hero in Hindu...
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| Amor asteroid | Asteroid |
The Amor asteroids are a group of near-Earth asteroid named after the asteroid 1221 Amor. They approach the orbit of the Earth from beyond, but do not cross it. Most Amors do cross the orbit of Mars. The two moons of Mars, Deimos and Phobos, may be...
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| Earth Trojan asteroid |
Earth Trojans are asteroid located in the Earth-Sun Lagrangian point L and L. They are named after the Trojan asteroid that occupy the analogous Lagrangian points of Jupiter.
Their location in the sky as observed from Earth's surface would be fixed...
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| Near-Earth asteroid |
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Near-Earth asteroids (NEAs) are asteroid whose orbit are close to Earth's orbit. All near-Earth asteroids spend part of their orbits between 0.983 and 1.3 astronomical unit away from the Sun. Some near-Earth asteroids' orbits intersect Earth's so...
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| Mars-crosser asteroid |
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A Mars-crosser asteroid is an asteroid whose orbit crosses that of Mars. The known numbered Mars-crossers are listed here. They include the two numbered Martian Trojan: 5261 Eureka and .
Asteroid*
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| Mars Trojan asteroid |
Mars Trojans are a large group of objects that share the orbit of the planet Mars around the Sun. They can be found around the two Lagrangian point 60° ahead and behind of Mars.
Presently, this family consists of no more than four asteroids:
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| Asteroid belt |
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Location |
The asteroid belt is the region of the Solar System located roughly between the orbits of the planet Mars and Jupiter. It is occupied by numerous irregularly shaped bodies called asteroid or minor planet. The asteroid belt region is also termed the...
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| Hungaria family |
The Hungaria asteroids are a group of asteroids in the main belt that orbit the Sun between 1.78 and 2.00 AU. The asteroids typically have a low eccentricity (below 0.18) and an inclination of 16 to 34 degrees. They have an orbital period of...
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| Phocaea family |
The Phocaea asteroids are a group of asteroids that orbit the sun between 2.25 and 2.5 AU. Asteroids in this group have orbits with eccentricities greater than 0.1 and inclination between 18 and 32. The group derives its name from its most massive...
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| Alinda family |
The Alinda asteroids are a group of asteroid with a semi-major axis of about 2.5 AU and an orbital eccentricity approximately between 0.4 and 0.65. The namesake is 887 Alinda, discovered by Max Wolf in 1918.
These objects are held in this region by...
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| Pallas family |
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The Pallas '''family''' of asteroids is a grouping of B-type asteroid at very high inclination in the intermediate main belt (Cellino et al (2002)). It was first noted by Kiyotsugu Hirayama in 1928.
The namesake of the family is 2 Pallas, an...
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| Griqua family |
The Griqua asteroids are a group of asteroids in the Main Belt orbiting the sun between 3.1 and 3.27 AU. Asteroids in this group have eccentricities greater than 0.35. The group derives its name from the asteroid 1362 Griqua.
These asteroids are...
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| Cybele asteroid |
Cybele asteroids are a group of asteroid in the main belt with a mean orbital radius between 3.27 AU and 3.7 AU, an eccentricity less than 0.3, and an inclination less than 25°.
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| Hilda family |
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The Hilda family of asteroids consists of asteroid with a semi-major axis between 3.7 AU and 4.2 AU, an eccentricity greater than 0.07, and an inclination less than 20°. They do not form a true asteroid family, in the sense that they do not descend...
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| Thule asteroid | |||||
| Trojan asteroid |
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Asteroid |
The Trojan asteroids (or "Trojans"), strictly interpreted, are a large group of objects that share the orbit of the planet Jupiter around the Sun. Relative to a coordinate system that is fixed on Jupiter, each Trojan orbits one or other of the two...
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| Damocloid asteroid | Asteroid |
Damocloids are asteroid such as 5335 Damocles and 1996 PW that have Halley family or long-period highly eccentric orbits typical of periodic comet such as Comet Halley, but without showing a cometary coma or tail.
Damocloids are believed to be...
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| Centaur |
The centaurs are a class of icy asteroid named after the mythological race of centaur. Centaurs orbit the Sun between Jupiter and Neptune, crossing the orbits of the large gas giant planets.The first centaur to be discovered was 2060 Chiron in 1977,...
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| Neptune Trojan |
As of May 2008, there are six known Neptune Trojans (named by analogy to the Trojan asteroid) which have the same orbital period as Neptune. They lie in the elongated, curved region around the L Lagrangian point 60° ahead of Neptune. These are , , ,...
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