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A meteoroid (/ ˈ m iː t i ə r ɔɪ d / MEE-tee-ə-royd) [1] is a small rocky or metallic body in outer space. Meteoroids are distinguished as objects significantly smaller than asteroids, ranging in size from grains to objects up to 1 m (3 ft 3 in) wide. [2] Objects smaller than meteoroids are classified as micrometeoroids or space dust.
An Earth-crosser is a near-Earth asteroid whose orbit crosses that of Earth as observed from the ecliptic pole of Earth's orbit. [1] The known numbered Earth-crossers are listed here. Those Earth-crossers whose semi-major axes are smaller than Earth's are Aten asteroids; the remaining ones are Apollo asteroids. (See also the Amor asteroids.)
This is a list of largest meteorites on Earth. Size can be assessed by the largest fragment of a given meteorite or the total amount of material coming from the same meteorite fall: often a single meteoroid during atmospheric entry tends to fragment into more pieces. The table lists the largest meteorites found on the Earth's surface.
Most meteoroids disintegrate when entering the Earth's atmosphere. Usually, five to ten a year are observed to fall and are subsequently recovered and made known to scientists. [7] Few meteorites are large enough to create large impact craters. Instead, they typically arrive at the surface at their terminal velocity and, at most, create a small ...
The name Transvaalia was kept, and the name and number 933 Susi was reused for the object 1927 CH discovered February 10, 1927, by Karl Reinmuth. 864 Aase and 1078 Mentha The object A917 CB discovered February 13, 1917, by Max Wolf was named 864 Aase , and the object 1926 XB discovered December 7, 1926, by Karl Reinmuth was named 1078 Mentha .
1783 Great Meteor; 1860 Great Meteor; 1913 Great Meteor Procession; 1972 Great Daylight Fireball; 2012 United Kingdom meteoroid; 2015 Thailand bolide; List of bolides in 2017; 2017 China bolide; Earth-grazing meteoroid of 13 October 1990
Meteoriticist – a scientist working on meteorites, meteors, and meteoroids. Meteoritics – the science of meteorites, meteors, and meteoroids. MORP – abbreviation for Meteorite Observation and Recovery Program. Micrometeorite – microscopic meteorites derived from Cosmic dust.
This is a list of asteroids that have impacted Earth after discovery and orbit calculation that predicted the impact in advance, which are cataloged by the Center for Near-Earth Object Studies (CNEOS).