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2026-01-14T10:28:27Z

Article written and Venn diagram created.

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== Comparison Article ==
Asteroid vs. Meteoroid
From Wikipedia, the free encyclopedia

An '''asteroid''' is a rocky, metallic, or icy body that orbits the Sun.<ref name="ref1" /><ref name="ref2" /> They are smaller than planets but larger than meteoroids. A '''meteoroid''' is a smaller piece of rock or debris in space, often originating from asteroids or comets.<ref name="ref3" /> The primary distinction between an asteroid and a meteoroid is its size, though other characteristics such as origin and composition are also considered.<ref name="ref3" />

=== Comparison Table ===
{| class="wikitable"
|-
! Category !! Asteroid !! Meteoroid
|-
| '''Size'''
| Generally larger than one meter in diameter.<ref name="ref1" /><ref name="ref4" /> Can range up to nearly 1000 km.<ref name="ref1" />
| Typically smaller than one meter, down to the size of a grain of sand.<ref name="ref5" />
|-
| '''Composition'''
| Composed of rock, metal (primarily nickel and iron), and sometimes ice.<ref name="ref1" /> Classified as C-type (carbonaceous), S-type (siliceous), or M-type (metallic).
| Similar to asteroids, consisting of rock, metal, or a combination. Many are fragments of asteroids or comets.
|-
| '''Origin'''
| Primarily remnants from the formation of the solar system, about 4.6 billion years ago.<ref name="ref2" /> Many are fragments of larger planetesimals.<ref name="ref1" />
| Often fragments from collisions between asteroids. Can also be debris from comets or ejected from planets or the Moon.
|-
| '''Location'''
| The majority are found in the main asteroid belt between Mars and Jupiter.<ref name="ref2" /> Others are found in different locations, including near-Earth space.
| Found throughout the solar system and are not confined to a specific orbit.
|}

[[File:Venn_diagram_Differences_between_Asteroid_versus_Meteoroid_comparison.png|thumb|center|800px|alt=Venn diagram for Differences between Asteroid and Meteoroid|Venn diagram comparing Differences between Asteroid and Meteoroid]]

=== Terminology ===
The terms asteroid and meteoroid are part of a classification system for celestial bodies. An asteroid, sometimes referred to as a minor planet, is a significant body orbiting the Sun.<ref name="ref1" /> Meteoroids are considerably smaller. When a meteoroid enters Earth's atmosphere, the friction and compression of air cause it to heat up and create a streak of light, which is known as a '''meteor''' or "shooting star". If any part of the meteoroid survives its passage through the atmosphere and lands on Earth's surface, it is then called a '''meteorite'''.

=== Further Distinctions ===
==== Orbit ====
Most asteroids are in stable orbits around the Sun, with the majority located in the asteroid belt.<ref name="ref2" /> The gravitational influence of Jupiter is believed to have prevented the material in this region from forming into a planet. Some asteroids have orbits that bring them into the inner solar system. Meteoroids, however, do not have a collective orbit and are distributed more randomly throughout the solar system. Their paths can be influenced by the gravitational pull of larger objects.

==== Compositional Subtypes ====
Asteroids are broadly classified based on their spectral characteristics, which correspond to their composition. C-type asteroids are carbon-rich, S-type are stony, and M-type are metallic. This classification relates to how far from the Sun they were formed. Meteoroids, and the meteorites they become, also have compositional classifications, such as irons, stones, and stony-irons, which often correspond to the composition of their parent asteroids. For instance, many meteorites found on Earth are believed to be fragments of specific types of asteroids from the asteroid belt.

== References ==
<references>
<ref name="ref1">[https://en.wikipedia.org/wiki/Asteroid "wikipedia.org"]. Retrieved January 14, 2026.</ref>
<ref name="ref2">[https://spaceplace.nasa.gov/asteroid/en/ "nasa.gov"]. Retrieved January 14, 2026.</ref>
<ref name="ref3">[https://science.nasa.gov/solar-system/asteroids/ "nasa.gov"]. Retrieved January 14, 2026.</ref>
<ref name="ref4">[https://spaceplace.nasa.gov/asteroid-or-meteor/en/ "nasa.gov"]. Retrieved January 14, 2026.</ref>
<ref name="ref5">[https://en.wikipedia.org/wiki/Meteoroid "wikipedia.org"]. Retrieved January 14, 2026.</ref>
</references>

[[Category:Comparisons]]

Differences between Asteroid and Meteoroid - Revision history

Dwg: Article written and Venn diagram created.