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A meteor procession was observed along a great circle arc from Canada to Brazil, leading astronomers to conclude that its source was a small, short-lived natural satellite of the Earth.

Historical image related to A meteor procession was observed along a great circle arc from Canada to Brazil, leading astronomers to conclude that its source was a small, short-lived natural satellite of the Earth. from February 9, 1913

Meteor procession

Meteor that breaks apart into fragments travelling in the same direction

A meteor procession occurs when an Earth-grazing meteor breaks apart, and the fragments travel across the sky in the same path. According to physicist Donald Olson, only four occurrences are known:18 August 1783 Great Meteor 20 July 1860 Great Meteor; believed by Olson to be the…
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1913 Great Meteor Procession

Meteor shower across the Western Hemisphere

On February 9, 1913, a significant meteoric phenomenon was reported from locations across Canada, the northeastern United States, Bermuda, and from many ships at sea as far south as Brazil, giving a total recorded ground track of over 11,000 km, and becoming known as the Great…
Source: Wikipedia (CC BY-SA)

Great circle

Spherical geometry analog of a straight line

In mathematics, a great circle or orthodrome is the circular intersection of a sphere and a plane passing through the sphere's center point.
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Natural satellite

Astronomical body that orbits a planet

A natural satellite is, in the most common usage, an astronomical body that orbits a planet, dwarf planet, or small Solar System body. Natural satellites are colloquially referred to as moons, a derivation from the Moon of Earth.
Source: Wikipedia (CC BY-SA)