comet
IPA: kˈɑmʌt
noun
- (astronomy) A small Solar System body consisting mainly of volatile ice, dust and particles of rock whose very eccentric solar orbit periodically brings it close enough to the Sun that the ice vaporises to form an atmosphere, or coma, which may be blown by the solar wind to produce a visible tail.
- A celestial phenomenon with the appearance of such a body.
- Any of several species of hummingbird found in the Andes.
- The fifth reindeer of Santa Claus.
- (programming) A web application model in which a long-held HTTP request allows a web server to push data to a browser, without the browser explicitly requesting it.
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Examples of "comet" in Sentences
- The image shows the ion tail of the comet.
- The stroke hit about the paddle of the Comet.
- The comet's next perihelion will be in the year 2016.
- Its heat will begin to vaporize the ice in the comet's body.
- In the UK, the series ended with the Comet in Moominland story.
- I've now reverted the addition of the symbols to the comet infobox.
- It measured both the neutral and ionized constituents of the comet's coma.
- He is an expert on the photometry and polarimetry of minor planets and comets.
- That is the difference between the slow balloon and the ballistic vomit comet.
- No matter how many times you rewind the clock, the comet is still going to hit.
- The tail of a comet is formed directly opposite the comet's path to or from the Sun.
- A comet is a relatively small extraterrestrialbody witha nucleus of rock, ice, dust and gases.
- Me: That's a smart idea because once the real comet is gone it won't be back for another 4,000 years.
- The tenuous material surrounding a comet is pushed away from the sun by radiation pressure and solar wind.
- This proximity should vaporize much of the comet, potentially producing a spectacularly bright comet head and tail.
- With a little imagination, they might look like the heads of mourning women with long, streaming hair -- and in fact, the word comet comes from the Greek word for "hair."
- "Because these particles have come from inside a comet we know that essentially the particles haven't been heated since they became part of the comet, because the comet is made of ice," he told the BBC News website.
- The comet is not going to be terribly bright (in part because it has broken up into numerous fragments instead of being a single, whole comet), about magnitude 4, and has just passed through the bottom part of the constellation Lyra (right past Messier 57, the Ring Nebula; see the picture below).
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