Definition, Betydelse, Synonymer & Anagram | Engelska ordet COMET

Definition av COMET

1. (astronomi) komet

Exempel på hur man kan använda COMET i en mening

• A comet is an icy, small Solar System body that warms and begins to release gases when passing close to the Sun, a process called outgassing.
• Comet Shoemaker–Levy 9 (formally designated D/1993 F2) was a comet that broke apart in July 1992 and collided with Jupiter in July 1994, providing the first direct observation of an extraterrestrial collision of Solar System objects.
• Comet Hale–Bopp (formally designated C/1995 O1) is a long-period comet that was one of the most widely observed of the 20th century and one of the brightest seen for many decades.
• Deep Space 1 (DS1) was a NASA technology demonstration spacecraft which flew by an asteroid and a comet.
• Dyson originated several concepts that bear his name, such as Dyson's transform, a fundamental technique in additive number theory, which he developed as part of his proof of Mann's theorem; the Dyson tree, a hypothetical genetically engineered plant capable of growing in a comet; the Dyson series, a perturbative series where each term is represented by Feynman diagrams; the Dyson sphere, a thought experiment that attempts to explain how a space-faring civilization would meet its energy requirements with a hypothetical megastructure that completely encompasses a star and captures a large percentage of its power output; and Dyson's eternal intelligence, a means by which an immortal society of intelligent beings in an open universe could escape the prospect of the heat death of the universe by extending subjective time to infinity while expending only a finite amount of energy.
• The streams consist of solid particles, known as meteoroids, normally ejected by the comet as its frozen gases evaporate under the heat of the Sun when it is near the Sun – typically closer than Jupiter's orbit.
• 1680 – German astronomer Gottfried Kirch discovers the Great Comet of 1680, the first comet to be discovered by telescope.
• From left, clockwise: the movie set of Titanic, the highest-grossing movie in history at the time; Harry Potter and the Philosopher's Stone is published; Comet Hale-Bopp passes by Earth and becomes one of the most observed comets of the 20th century; Golden Bauhinia Square, where sovereignty of Hong Kong is handed over from the United Kingdom to the People's Republic of China; the Central European flood kills 114 people in the Czech Republic, Poland, and Germany; Korean Air Flight 801 crashes during heavy rain on Guam, killing 229; Mars Pathfinder and Sojourner land on Mars; flowers left outside Kensington Palace following the death of Diana, Princess of Wales, in a car crash in Paris.
• The comet, visible for eight days even in daylight, makes its closest approach to Earth on February 20.
• Halley's Comet is the only known short-period comet that is consistently visible to the naked eye from Earth, though with the majority of recorded apparations (25 of 30) occuring after 75-77 years.
• Similar comments were made even in Constantinople, where John Kyriotes penned a poem offering a punning comparison between the Bulgarian Emperor and Halley's comet, which appeared in 989.
• A meteor or shooting star is the visible passage of a meteoroid, comet, or asteroid entering Earth's atmosphere.
• It was hoped that a new comet would have been discovered in the inner Solar System between 2006 and 2008, in which case the spacecraft trajectory would have been changed if possible to rendezvous with the new comet.
• In the science fiction novel Lucifer's Hammer, written by Larry Niven and Jerry Pournelle, fragments of a comet strike the Earth, causing massive tidal waves to destroy most of the planet's coastal cities.

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