A starlike body; esp. one of the numerous small planets whose orbits lie between those of Mars and Jupiter; -- called also planetoids and minor planets.
A small, irregularly shaped rock of iron and nickel, many of which are located in the Asteroid Belt. The largest asteroids are Ceres (900-km diameter), Pallas (500-km diameter), and Vesta (500-km diameter).
Large solid mass suspended in outer space that revolves around the sun. Asteroids are larger than meteoroids.
Small, rocky bodies that orbit the Sun, asteroids range in diameter from a few millimeters to over 250 km. Although all asteriods reflect sunlight, only one, Vesta, can be seen with the unaided eye.
A rocky body that orbits the sun. Most asteroids are found in a region between Mars and Jupiter.
Metallic, rocky objects without atmospheres that orbit the Sun, but are too small to be called planets. A group of these objects make up the asteroid belt between Mars and Jupiter. Scientist believe that asteroids are pieces of the material that formed the solar system.
Small, irregularly shaped rocks of iron and nickel that are scattered in an orbital ring around the Sun between the orbits of Mars and Jupiter. The largest are Ceres (900-km diameter), Pallas and Vesta (500-km diameter).
A small, rocky, celestial body that revolves around the Sun with characteristic diameters between a few and several hundred kilometers. Also called minor planet, planetoid.
small, rocky body that orbits the sun. Most are located between Mars and Jupiter in a region called an asteroid belt; also called planetoids.
a rocky object in space that can be anywhere from a few feet wide to several miles wide. Most asteroids in our solar system are part of a belt between Mars and Jupiter.
Any of the thousands of small planets or Minor Planets.
One of thousands of small planetlike bodies orbiting between Mars and Jupiter having diameters from a fraction of a kilometer to about 1,000 km.
A small rocky body that orbits a star. Over 100,000 asteroids orbit the sun.
A minor planet usually made up of rock and ice.
'small' rocky and/or metalic body orbiting the Sun.
Any of many small celestial bodies in orbit about the sun between Mars and Jupiter. Also know as a iminor planet or planetoid. Referenced in: Interactive Solar System
any of the small celestial bodies found generally between the orbits of Mars and Jupiter
Naturally formed solid bodies that orbit the sun, have no atmosphere and no signs of gas or dust coming from them. Most are found in orbit between the orbits of Mars and Jupiter.
One of thousands of small rocky-material bodies revolving in orbits, chiefly between Mars and Jupiter in the asteroid belt.
A relatively small planetary body orbiting ithe Sun. Most asteroids are found in the Asteroid Belt between the orbits of Mars and Jupiter. The largest asteroid, Ceres, is 770 kilometers in diameter.
A solar system object. An asteroid is a dense rocky body that orbits the sun, most are founf in an orbit in the Asteroid belt, halfway between Mars and Jupiter.
a "minor planet" ,a chunk of rock smaller than planet-size but larger than a meteoroid, in orbit around a star.
Small, rocky world. Most asteroids are between the orbits of Mars and Jupiter. See Asteroid, Comet and Meteor Facts page.
An object orbiting the Sun that is smaller than a major planet (tens of meters to about 1,000 km diameter), but shows no evidence of an atmosphere or other types of activity associated with comets. Most asteroids are located in a belt between Mars and Jupiter from 2.2 to 3.3 AU from the Sun.
Also called "planetoids" or "minor planets," the asteroids are small rocky bodies that orbit a star (like the Sun). In the Solar System, most asteroids lie between the orbits of Mars and Jupiter. The largest asteroid -- and the first discovered -- is Ceres, about 900 kilometers in diameter. More than 1800 have been catalogued, and probably millions of smaller ones exist.
Literally, a small body in space that looks like a star. Also called a minor planet, or planetoid. One of tens of thousands of small bodies orbiting the Sun, mostly between the orbits of Mars and Jupiter, in the so-called asteroid belt.
a large rock or small planet from the belt that orbits the sun between Mars and Jupiter
a large rocky object or very small planet ( planetoid )
a minor planetary body
a rock that orbits the Sun between the orbits of Mars and Jupiter
a rocky body in space which may be only a few hundred feet wide or it may be several hundred miles wide
a rocky body which is gravitationally bound to and orbit s the
a rocky body which is gravitationally bound to and orbits the Sun
a small, solid object in our
a small, solid object in the solar system
a stellar satellite which is similar to a planet except that it is too small to have a significant gravitational field
a small body, similar in composition to one of the terrestrial planets. Asteroids come in a wide variety of sizes in shapes. The majority of asteroids are found in the asteroid belt between the planets Mars and Jupiter. It is believed that the asteroids there would have formed into a planet had Jupiter's gravitational forces not been so strong as to disrupt that formation
A fragment of a planetesimal (or possibly an aggregate of fragments). Most asteroids orbit the sun between Mars and Jupiter, although many also have orbits which cross that of the Earth and are thus called near-Earth asteroids (NEA's).
A rocky or metallic object which is too small to be considered a planet. Ranges in size from around 1000km to a few cm.
An object orbiting the Sun that is smaller than a major planet, but that shows no evidence of an atmosphere or of other types of activity associated with comets. Also called a minor planet.
a rocky chunk of matter in orbit around the sun.
Rocky, carbonaceous or metallic body, smaller than a planet. Most asteroids have orbits between Mars and Jupiter.
a rocky body much smaller than major planets and usually (but not always) found in an orbit between Mars and Jupiter
Asteroids orbit the sun but are too small to be called planets. They can be up to 1000 km in diameter. The Solar System
n. A rocky body, less than 1000 kilometers across, in orbit around the sun.
A small, rocky object revolving around the Sun, sometimes called a minor planet or planetoid. The vast majority of asteroids is found in the asteroid belt, a region between the orbits of Mars and Jupiter. The largest known asteroid, Ceres, has a diameter of 926 kilometers (579 miles).
A small body that orbits the sun. Most asteroids are thought to be the result of debris left over from the formation of the solar system. Most asteroids occur in the region between Mars and Jupiter. Collisions among the bodies in the asteroid belt and adjacent planets displace fragments and place them on a collision course with Earth. The asteroid belt is thought to be the source of most meteorites. More information can be found at: Asteroids data sheet (SPACE.com, USA).
These are small rocky bodies, smaller than planets, these bodies are so small that they do not form spheres, but are irregular in shape. Most asteroids can be found in the asteroid belt between Mars and Jupiter. Some asteroids have high orbital eccentricities and orbital inclination. There are collections of asteroids, trapped gravitationally at Jupiter's trojan points.
a rocky body orbiting the sun. Most asteroids are located in the asteroid belt between Mars and Jupiter. Asteroids are much smaller than the Earth or the Moon. The largest one is called Ceres and it is about 933 kilometers across. The next largest are 2 Pallas, 4 Vesta and 10 Hygiea which are between 400 and 525 km in diameter. All other known asteroids are less than 340 km in diameter.
A minor planet composed primarily of rock. The largest asteroid is Ceres with a diameter of about 570 miles. Most asteroids orbit the Sun between Mars and Jupiter in the main asteroid belt.
Large piece of rock orbiting the sun, usually located in the asteroid belt between Mars and Jupiter.
A small rocky body orbiting the sun.
One of billions of rocky objects, less than 1000 km in diameter, which orbit the Sun. Also known as minor planets. Thought to be planetesimals leftover from the formation of the planets. The first asteroid (Ceres) was discovered by Giuseppe Piazzi in 1801. More than 10 000 asteroids have so far been discovered and given permanent identification numbers. The largest asteroid is 2001 KX76 with a diameter of at least 1200 km.
Small fragments of rock floating around in space left over from the formation of the Solar System 4,500 million years ago.
One of the many thousand chunks of rock or iron that orbit the Sun, also known by the older term, minor planets. Most asteroids orbit between Mars and Jupiter, where they formed; but some cross the orbit of Earth.
Any of the thousands of small bodies that revolve about the sun in orbits lying mostly between those of Mars and Jupiter. Also known as a minor planet.
a large planetary object which may measure in size from half a mile to hundreds of miles in diameter. Asteroids lie in the asteroid belt, the zone between the orbits of Mars and Jupiter. Asteroids generally travel in mildly elliptical paths around the sun. Some asteroids orbit the sun in such erratic paths that their orbits take them far within the orbit of Mars or far beyond the orbit of Jupiter where they must be of exceptional size in order to be observed. Some larger asteroids have been sighted within a few million miles of the earth. Some smaller asteroids have passed within roughly 600,000 miles of the earth. Traveling fast, they can be observed for only brief periods of time and then are lost to view. Like planets, asteroids travel in a counterclockwise direction around the sun.
One of thousands of very small members of the solar system orbiting the Sun between the orbits of Mars and Jupiter. Asteroids are often referred to as "minor planets."
A small rocky objects in the solar system.
now called a dwarf planet or small solar-system body, depending on its characteristics
These are minor planets orbiting the Sun. The total mass of all the asteroids in our solar system is less than the mass of the Moon. The asteroid belt is located between Mars and Jupiter.
(Also "planetoid") These are rocky bodies, the vast majority of which orbit the Sun between Mars and Jupiter. It is thought that there must be around 100,000 in all. The largest asteroid is Ceres which has a diameter of 579 miles. The smallest detected asteroids have diameters of several hundred feet. Together with comets and meteoroids, asteroids make up the minor bodies of the solar system. They are considered to be left over planetessimals from the formation of our solar system. The gravitational pull of Jupiter is thought to have stopped the members of the asteroid belt from forming a planet.
A small rocky or metallic body that orbits a star.
An asteroid is a large rock or small planet orbiting the Sun. Most asteroids lie in a belt between Mars and Jupiter. An asteroid impact with the Earth may have caused the K-T mass extinction.
minor planet; one of several thousand very small members of the Solar System that revolve around the Sun, generally between the orbits of Mars and Jupiter.
A small planetary body in orbit around the Sun, larger than a meteoroid but smaller than a planet. Most asteroids can be found in a belt between the orbits of Mars and Jupiter. The orbits of some asteroids take them close to the Sun, which also takes them across the paths of the planets.
(also called planetoid) - A medium-sized rocky object that orbits the Sun. It's smaller than a planet but larger than a meteoroid. Also, any number of small bodies that revolve around the Sun.
An interplanetary body, of varying size not associated with a fixed orbit
a medium-sized rocky object made of rock and metal that orbits the sun.
One of many small rocky bodies orbiting the Sun; a concentration of these makes up the asteroid Belt between Mars and Jupiter
a large rocky object that orbits a star, but is too small to be a planet.
One of the many small celestial bodies revolving around the Sun, most of the orbits being between those of Mars and Jupiter. Also known as minor planet or planetoid.
A rocky space object which can be from a few hundred feet to several hundred km wide. Most asteroids in our solar system orbit the Sun in a belt between Mars and Jupiter.
a.k.a. minor planet. Rocky body much smaller than a planet. There are currently over 10,000 known asteroids, 95% of which are situated between the orbits of Mars and Jupiter with an orbital period of 3-6 years. The other 5% of asteroids have much different orbits, some of which cross Earth's orbit, the so-called Apollo and Aten asteroids. Included in this number are the Potentially Hazardous Asteroids.
A large rocky object, also called a minor planet or planetoid. Most asteroids orbit the Sun in the asteroid belt between Mars and Jupiter.
any of thousands of celestial bodies with diameters between one and five hundred miles that revolve around the sun in orbits located mostly between those of Jupiter and Mars; planetoid. meteor a small mass, speck, or remnant of matter traveling through space or falling to earth, or the fiery streak in the sky made by the friction of its passage through the earth's atmosphere; meteorite or meteoroid.
A small rocky or metallic body orbitting the Sun. About 20,000 have been observed, ranging in size from several hundred kilometers across down to dust particles.
Any of the numerous small rocky bodies in orbit around the sun. Most asteroids reside in the "main belt" between Mars and Jupiter, but some have orbits that cross the Earth's orbit and could strike its surface.
Any of numerous small celestial bodies composed of rock and metal that move around the sun (mainly between the orbits of Mars and Jupiter).
A rocky or metalic body, orbiting the Sun between Mars and Jupiter, and leftover from the formation of the solar system [LCOTE
Any one of the thousands of bodies in space ranging in size from large boulders to miles in diameter which orbit the sun in a region known as the asteroid belt. The asteroid belt lies between the orbits of mars and Jupiter. To date, over two thousand of these bodies have been identified and catalogued. The largest asteroids are Chiron, Astraea, Juno, Vesta, Pallas and Ceres.
One of a number of objects ranging in size from sub-km to about 1000 km, most of which lie between the orbits of Mars and Jupiter; also called 'minor planet'. The preliminary designations consist of the year of discovery, an upper case letter to indicate the halfmonth in that year (A=Jan 1-15, B=Jan 16-31, ..., Y=Dec 16-31, the letter I being omitted), and a second upper case letter in sequence. When this sequence of 25 letters (with I again being omitted) has been completed it is repeated and followed by a sequential number. Permanent designations consist of numbers and names, beginning with (1) Ceres, given to asteroids for which orbits are accurately determined. Names are generally proposed by the discoverer. See also: Apollo asteroids, Aten asteroids, Meteoroid Stream
Asteroids have had a name change and are called minor planets.
A small rocky celestial body in orbit around the sun which shows no evidence of an atmosphere or other types of activity associated with comets.
Object made of rock, metal, and/or ice that orbits the Sun, but is much smaller than a planet (p.215).
One of thousands of small planets between Mars and Jupiter with diameters from a fraction of a mile to nearly 500 miles.
one of a number of objects ranging in size from sub-kilometer to about 1,000 kilometers, most of which lie between the orbits of Mars and Jupiter; also called "minor planets".
A small, usually irregularly shaped body orbiting the sun, most often at least partially between the orbits of Mars and Jupiter.
Asteroids, also called minor planets or planetoids, are a class of astronomical object. The term asteroid is generally used to indicate a diverse group of small celestial bodies that drift in the solar system in orbit around the Sun. Asteroid (Greek for "star-like") is the word used most in the English literature for minor planets, which has been the term preferred by the International Astronomical Union; some other languages prefer planetoid (Greek: "planet-like"), because it more accurately describes what they are.