Planetoid

Planetoid Related Category: Astronomy: General see asteroid. More on Planetoid Asteroid - planetoid, or minor planet, small body orbiting the sun.

Planetoid is the common designation for a small planet-like celestial body orbiting a star. These planetoids, or minor planets, can maintain their own individual and unique solar orbit, or they can also be found among asteroids in an asteroid belt.

Definition: planetoid: An asteroid. A medium-sized rocky object orbiting the Sun; smaller than a planet, larger than a meteoroid. Asteroids show no evidence of an atmosphere or other types of activity associated with comets.

Centaur (planetoid) The centaurs are a class of icy planetoids named after the mythical race of centaurs. Centaurs orbit the Sun between Jupiter and Neptune, crossing the orbits of the large gas giant planets.

Centaur (planetoid) The centaurs are an unstable orbital class of minor planets named after the mythological race of centaurs. The name was chosen because they behave as half asteroid and half comet.... Dwarf planet ...

Planetoid/Planetesimal: Planetoids are objects that are larger than asteroids but cannot be called a planet. The term planetesimal is sometimes used to refer to asteroids, but also objects with a specific diameter of approx. 10 km.

PLANETOID A planetoid is a very small planet. The larger asteroids are sometimes called planetoids. PLANETOLOGIST A planetologist is an astronomer who studies the physical features of planets.

Planetoid. Another name for an asteroid or minor planet. Planisphere. A circular map of the stars covered by a rotating mask that has a window or opening in it. The map and mask are the same size and have time and date markings on the outside.

The planetoid is usually even colder, because it approaches the Sun this closely only briefly during its 10,500 year orbit around the Sun. At its most distant, "Sedna" is 130 billion kilometers (84 billion miles) from the Sun.

The distant planetoid Sedna appears to be covered in a tar-like sludge that gives it a distinctly red hue, a new study reveals. The findings suggests the dark crust was baked-on by the Sun and has been untouched by other objects for millions of years.

The larger of such bodies are sometimes called principal planets to distinguish them from asteroids, planetoids, or minor planets, which are comparatively very small. The larger planets are accompanied by satellites, such as the moon.

ascending node (NASA SP-7, 1965) That point at which a planet, planetoid, or comet crosses to the north side of the ecliptic; that point at which a satellite crosses to the north side of the equatorial plane of its primary.

(more) asteroid (also "planetoid") a medium-sized rocky object orbiting the Sun; smaller than a planet, larger than a meteoroid asteroid number asteroids are assigned a serial number when they are discovered.

asteroid Mainastronomy also called minor planet or planetoid Main any of a host of rocky small bodies, about 1,000 km (600 miles) or less in diameter, ...

Asteroids, also called minor planets or planetoids, are a class of astronomical objects. The term asteroid is generally used to indicate a diverse group of small celestial bodies in the solar system that orbit around the Sun.

In 1977, Charles Kowal discovered 2060 Chiron, an icy planetoid with an orbit between Saturn and Uranus. He used a blink comparator; the same device that had allowed Clyde Tombaugh to discover Pluto nearly 50 years before.

The words asteroid, minor planet and planetoid are (unofficial and) interchangable. They each refer to the small rocky bodies that are mainly confined to the asteroid belt between the planets Mars and Jupiter.

Asteroids are also known as planetoids or minor planets. THE ASTEROID BELT The asteroid belt is a doughnut-shaped concentration of asteroids orbiting the Sun between the orbits of Mars and Jupiter, closer to the orbit of Mars.

Imagine that you are at the top of a mountain on an otherwise smooth surfaced and perfectly round planetoid with no atmosphere. You are thousands of feet above the normal surface level and there are no other tall objects on the planetoid.

An asteroid is a large rocky object or very small planet (planetoid). Most asteroids orbit the Sun in the asteroid belt between Mars and Jupiter. A few asteroids approach the Sun more closely.

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.

Guess what? Asteroids are often referred to as minor planets or planetoids.

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. Asteroids NEAR burn anomaly ...

Recent spectroscopic infrared light studies of the strange planetoid's surface indicate Sedna has dodged significant bullets. The data also shows Sedna may lack large amounts of water or methane ice.

54 AU, Uranus's is 19.19 AU, and Neptune's is 30.07. The Kuiper belt of planetoids ranges from 30 to 50 AU. Finally, the Oort cloud, which gives birth to the long-period comets, is more than 100 AU from the Sun.

Also called minor planet (c) Also called planetoids or minor planets, the asteroids are tiny planets most of which orbit the Sun between Mars and Jupiter. The largest - and the first discovered - is Ceres, with a diameter of 1,003 km.

dynamically interesting orbits or groups of objects with similar orbital characteristics, generally use the term minor planet, whereas those who study the physical properties of such objects usually refer to them as asteroids. The term planetoid is ...

(normal to the z-axis and through the center of mass) and normal to the reference surface at the point. The height of a point is specified as the distance above a point with the same longitude and latitude on the reference surface. [S92] Planetoids ...

See also: Planet, Orbit, Earth, Asteroid, Time