Search results
Results from the WOW.Com Content Network
The asteroids are not pristine samples of the primordial Solar System. They have undergone considerable evolution since their formation, including internal heating (in the first few tens of millions of years), surface melting from impacts, space weathering from radiation, and bombardment by micrometeorites .
Solar System belts are asteroid and comet belts that orbit the Sun in the Solar System in interplanetary space. [1] [2] The Solar System belts' size and placement are mostly a result of the Solar System having four giant planets: Jupiter, Saturn, Uranus and Neptune far from the sun. The giant planets must be in the correct place, not too close ...
A top view of asteroid group location in the inner solar system A map of planets and asteroid groups of the inner solar system. Distances from sun are to scale, object sizes are not. Various dynamical groups of asteroids have been discovered orbiting in the inner Solar System.
Asteroids number in the hundreds of thousands. For longer lists, see list of exceptional asteroids, list of asteroids, or list of Solar System objects by size. Asteroid moons; A number of smaller groups distinct from the asteroid belt; The outer Solar System with the giant planets, their satellites, trojan asteroids and some minor planets. Jupiter
Ida is a member of the Koronis family of asteroid-belt asteroids. [17] Ida orbits the Sun at an average distance of 2.862 AU (428.1 Gm), between the orbits of Mars and Jupiter. [3] [5] Ida takes 4.84089 years to complete one orbit. [5] Ida rotates in the retrograde direction with a rotation period of 4.63 hours (roughly 5 hours).
Here's what to know about Apophis and how space agencies hope to protect Earth from other asteroids like it. Apophis to make 2029 flyby to Earth Apophis is projected to pass within 20,000 miles of ...
The Hilda asteroids (adj. Hildian) are a dynamical group of more than 6,000 asteroids located beyond the asteroid belt but within Jupiter's orbit, in a 3:2 orbital resonance with Jupiter. [ 1 ] [ 2 ] The namesake is the asteroid 153 Hilda .
The poles of astronomical bodies are determined based on their axis of rotation in relation to the celestial poles of the celestial sphere. Astronomical bodies include stars, planets, dwarf planets and small Solar System bodies such as comets and minor planets (e.g., asteroids), as well as natural satellites and minor-planet moons.