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− | [[Image:Archers Comet.jpg|thumb| |
+ | [[Image:Archers Comet.jpg|thumb|Archer's Comet.]] |
− | A '''comet''' is a [[Astronomy and Astrophysics|celestial body]], usually |
+ | A '''comet''' is a [[Astronomy and Astrophysics|celestial body]], usually [[orbit]]ing a [[star]], composed of rock and [[ice]]. If a comet approaches close enough to a star, the increased heat causes it shed [[mass]] away from the star, creating a coma and/or "tail". |
+ | One of the best known comets in the [[Sol system]] is [[Halley's Comet]] ({{TNG|Time's Arrow}}, {{VOY|Future's End}}) |
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− | ===Notable comets=== |
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− | [[Sol]]'s best known comet, [[Halley's Comet]], has a regular orbit of approximately 76 [[year]]s, and is often visible from [[Earth]]'s surface when passing. Coincidentally, ''Halley''<nowiki>'</nowiki>s appearances marked the years of the birth ([[19th century|1835]]) and [[death]] ([[1910]]) of the famous [[American]] writer [[Samuel Clemens]]. In a [[time]] [[time travel|travel]] incident that brought him from [[San Francisco]] of [[1893]] to the [[deck]]s of the [[USS Enterprise (NCC-1701-D)|USS ''Enterprise''-D]] in [[2369]], Clemens was curious if the [[spaceship]] had visited Halley's Comet. ({{TNG|Time's Arrow}}) |
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− | + | In [[June]] [[2151]], the Earth [[starship]] [[Enterprise (NX-01)|''Enterprise'' NX-01]] discovered the [[Archer's Comet|largest comet]] yet observed by [[human]]s. It was named for ''Enterprise''<nowiki>'</nowiki>s [[captain]], [[Jonathan Archer]]. ({{ENT|Breaking the Ice}}) |
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− | [[Image:Comet Burke.jpg|thumb|Comet |
+ | [[Image:Comet Burke.jpg|thumb|Comet Burke on approach to Mars.]] |
− | In the [[22nd century]], many comets in the [[Sol system]] were |
+ | In the [[22nd century]], many comets in the [[Sol system]] were diverted to [[Mars]] by the [[verteron array]] for the Martian [[terraforming]] project. At one point, fourteen comets were scheduled to impact with Mars in a thirty-[[month]] span, starting with the arrival of [[Burke (comet)|comet Burke]] in [[January]] of [[2155]]. ({{ENT|Terra Prime}}) |
− | + | The comet [[Icarus IV]] in the [[Romulan Neutral Zone]] was the locus for part of the [[Neutral Zone Incursion|battle]] between the [[USS Enterprise (NCC-1701)|USS ''Enterprise'']] and a [[Romulan Bird-of-Prey (23rd century)|Romulan Bird-of-Prey]] in [[2266]]. ({{TOS|Balance of Terror}}) |
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− | The ''Enterprise''-D tracked a [[rogue comet]] through [[Sector]] [[Sector 1156|1156]] in [[2370]]. |
+ | The [[USS Enterprise-D|USS ''Enterprise''-D]] tracked a [[rogue comet]] through [[Sector]] [[Sector 1156|1156]] in [[2370]]. Its core, composed largely of [[fortanium]], proved to be a [[D'Arsay]] [[D'Arsay archive|cultural archive]], built over [[distant past|78 million years previous]]. ({{TNG|Masks}}) |
− | + | In [[2371]], the [[wormhole relay station]] experiment conducted by the [[USS Defiant|USS ''Defiant'']] in the [[Gamma Quadrant]] diverted a comet laden with [[silithium]] towards the [[Bajoran wormhole]]. Some interpreted this comet as the "[[Sword of Stars]]", an element in [[Trakor's Third Prophecy]].({{DS9|Destiny}}) |
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+ | In [[2373]], the [[USS Enterprise (NCC-1701-E)|USS ''Enterprise''-E]] detected a class-2 comet while on patrol in the [[Romulan Neutral Zone]]. ({{film|8}}) |
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− | ==Background== |
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+ | In [[2377]], [[Harry Kim]], [[Seven of Nine]], and [[the Doctor]] undertook a mission to collect cometary [[biology|bio-matter]], so that the Doctor could create new [[medicine]]s. ({{VOY|Body and Soul}}) |
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+ | ==See also== |
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+ | *[[:Category:Comets]] |
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+ | *[[Dark matter proto-comet]] |
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+ | *[[Rogue comet]] |
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*{{Wikipedia}} |
*{{Wikipedia}} |
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Revision as of 04:14, 28 June 2007
A comet is a celestial body, usually orbiting a star, composed of rock and ice. If a comet approaches close enough to a star, the increased heat causes it shed mass away from the star, creating a coma and/or "tail".
One of the best known comets in the Sol system is Halley's Comet (TNG: "Time's Arrow", VOY: "Future's End")
In June 2151, the Earth starship Enterprise NX-01 discovered the largest comet yet observed by humans. It was named for Enterprise's captain, Jonathan Archer. (ENT: "Breaking the Ice")
In the 22nd century, many comets in the Sol system were diverted to Mars by the verteron array for the Martian terraforming project. At one point, fourteen comets were scheduled to impact with Mars in a thirty-month span, starting with the arrival of comet Burke in January of 2155. (ENT: "Terra Prime")
The comet Icarus IV in the Romulan Neutral Zone was the locus for part of the battle between the USS Enterprise and a Romulan Bird-of-Prey in 2266. (TOS: "Balance of Terror")
The USS Enterprise-D tracked a rogue comet through Sector 1156 in 2370. Its core, composed largely of fortanium, proved to be a D'Arsay cultural archive, built over 78 million years previous. (TNG: "Masks")
In 2371, the wormhole relay station experiment conducted by the USS Defiant in the Gamma Quadrant diverted a comet laden with silithium towards the Bajoran wormhole. Some interpreted this comet as the "Sword of Stars", an element in Trakor's Third Prophecy.(DS9: "Destiny")
In 2373, the USS Enterprise-E detected a class-2 comet while on patrol in the Romulan Neutral Zone. (Star Trek: First Contact)
In 2377, Harry Kim, Seven of Nine, and the Doctor undertook a mission to collect cometary bio-matter, so that the Doctor could create new medicines. (VOY: "Body and Soul")
- In the Sol system, many comets originate from the Oort cloud, a collection of ice, dust, and other debris particles that marks the outer boundary of the solar system. Other comets are known to come from the Kuiper belt.