asteroid belt

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asteroid belt

(main belt) The zone near to the plane of the ecliptic and between the orbits of Mars and Jupiter that contains the majority of asteroids, known as main-belt asteroids. The edges are well-defined at distances from the Sun of about 1.7 and 4.0 AU respectively and the orbits are strongly concentrated in the plane of the ecliptic. Even so, the individual asteroids in the main belt are widely spaced. The orbital inclination becomes more scattered on moving through the belt. The average inclination is about 10° and the average eccentricity is 0.15. All the bodies are in direct motion. Occasional collisions between asteroids occur at velocities of about 5 km s–1. See also Kirkwood gaps.

asteroid belt

[′as·tə‚rȯid ‚belt]
(astronomy)
The region between 2.1 and 3.5 astronomical units from the sun where most of the asteroids are found.
References in periodicals archive ?
Eventually the asteroids cross the orbit of Mars, the inner boundary of the main belt.
The NEOWISE team measured the reflectivity and the size of about 120,000 asteroids in the main belt, including 1,056 members of the Baptistina family.
The mission also observed known objects closer and farther to us than the main belt, including roughly 2,000 asteroids that orbit along with Jupiter, hundreds of NEOs and more than 100 comets.
In addition to discovering new asteroids and comets, NEOWISE also confirmed the presence of objects in the main belt that already had been detected.
in the case of tendering for part 1 of the contract (the main belt leather black color):
The spacecraft and lander are scheduled to close in on 21 Lutetia, a large Main belt asteroid, on July 10.
Contract notice: Delivery of the main belt black leather in the amount of 2,330 units, warning vests at 2,000 units and vest tactical-operational in the amount of 800 pieces
Orbiting in the main belt of asteroids between Mars and Jupiter, Lutetia appears as a single point of light to ground telescopes.
Tenders are invited for Maintenance of 1500 mtr long and 800 mm/1000 mm wide belt conveyor strictures like leveling alignment of belt and replacement of top bottom roller etc of main Belt Conveyor from Belt Dip/64L to 91L for 40days in Main Line at East Block of Churcha Mine RO.
Odds are that the smaller impactor would have been only a few meters across, since asteroids of this size are far more common in the main belt.
Evans and his colleagues sifted through the archives, they found a bounty much closer to home: 100 members of the main belt of asteroids, which lies between the orbits of Jupiter and Mars.
Tenders are invited for Repairing of platform at discharge point of main belt to coal loading bunker and fixing of side plates in bunker 01 at chp gouri expn ocm