Fireball
Related Category: Astronomy: General
very bright meteor leaving a trail in the sky that can remain visible for several minutes; often a distinct sound, perhaps caused by very low frequency radio waves, is associated with it.
Fireball
Three Leonid meteors captured in a 5 minute exposure. The brightest is a fireball clearly showing a trail of ionised air molecules as well as the smoke trail.
Credit: Jerry Lodriguss ...
fireball
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Fireball
, The bright streak of light in the sky caused by a . A less bright is called a .
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Definition: fireball: A bright meteor.
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Fireball networks. A very significant development in meteor science occurred during the 1960s. This was the establishment of large-scale networks for photographing very bright meteors, or fireballs.
Fireballs were much in the news over the past month due to a big one that was seen in the Illinois, Michigan, and Indiana areas around local midnight on March 26 - 27, 2003. The fireball streaked across the sky and exploded in a bright flash.
Japanese amateur astronomer Masayuki Tachikawa caught the possible fireball event in a video at 18:22 UT on 20 August as a brief, two second, brightening near the north edge of Jupiter's Northern Equatorial Belt.
fireball
an extremely bright meteor; generally brighter than magnitude -4
fireballs ...
Fireball- any meteor brighter than Venus, about magnitude -4
Flare, solar- brilliant outbreaks in the solar atmosphere, normally detectable only by spectroscopic methods ...
Fireball: The streak of light and loud noise of a large meteor passing through the Earth's atmosphere.
Fischer-Tropsch reaction: Production of organic molecules by the addition of hydrogen to carbon monoxide aided by a suitable catalyst.
fireball
A very bright meteor which can be much brighter than any star.
Fireball
an extremely bright meteor. Also known as bolides, fireballs can be several times brighter than the full Moon. Some can even be accompanied by a sonic boom.
Fireball. A very brilliant meteor.
Flares, solar. Brilliant eruptions in the outer part of the Sun's atmosphere. They can usually only be seen with the aid of special filters and instruments.
Fireball - An especially bright streak of light in the sky produced when an interplanetary dust particle enters the Earth's atmosphere, vaporizing the particle and heating the atmosphere ...
[edit] Fireball
A fireball is a brighter-than-usual meteor. The International Astronomical Union defines a fireball as "a meteor brighter than any of the planets" (magnitude -4 or greater).
Nuclear fireball A sphere of extremely hot gas (or part of a sphere, for explosions near the ground) formed around the explosion of a nuclear bomb.
FIREBALL
A fireball is any meteor that is brighter than Venus (magnitude -4). A sonic boom often follows a fireball and they can cast a shadow. They are caused by millimeter-sized (or bigger) meteoroids disintegrating in the atmosphere.
Fireballs Light Up Jupiter Science Daily - September 11, 2010
Amateur astronomers working with professional astronomers have spotted two fireballs lighting up Jupiter's atmosphere this summer, ...
fireball - (n.)
An exceptionally bright meteor. ~ See Also: bolide.
first law of thermodynamics - (n.) ...
A fireball is any meteor that is brighter than Venus (magnitude -4).
A meteor shower is a phenomenon in which many meteors fall through the atmosphere in a relatively short time and in approximately parallel trajectories.
FR FireballFR layoutFr Roger Jupp
Fra AlberigoFra Andrew BertieFra Angelico
Fra BartolommeoFra DiamanteFra Diavolo ...
The fireball created by the terminal explosion will spew vaporized comet material to very high altitudes as it expands and balloons upward. It may carry with it atmospheric gases that are normally to be found only far below Jupiter's visible clouds.
The fireball was most luminous over Nevada. Sky watchers as far away as 100 miles from the reentry path could see the capsule glowing 10 to 100 times brighter than Venus. In fact, the light was as bright as a fat crescent Moon.
The fireball of vaporized impactor and comet material shot skyward. It expanded rapidly above the impact site at approximately 5 kilometers per second (3.1 miles per second). The crater was just beginning to form.
The fading fireball of a gamma-ray burst - a sudden burst of gamma rays from deep space - that is observable in less energetic wavelengths, such as X-ray, optical, and radio.
Primeval Fireball
The hot, dense, early stage of the Universe (predicted by the Big Bang theory) when the Universe was predominantly filled with highly energetic radiation, ...
* The Tunguska fireball was the only major impact event in history to be witnessed and recorded, but there is plenty of evidence for other recent, by geological standards at least, major impact events.
fireball (NASA SP-7, 1965) A bright meteor with luminosity which equals or exceeds that of the brightest planets. fireballs (AS&T Dictionary) Bright meteors with an apparent visual magnitude of -4 mag. or brighter.
Seen a Meteor or Fireball? Send a report to Jennie McCormick! Report Form ...
He is the author of Fireballs, Meteors and Meteorites, Tektites, a Cosmic Paradox, Graze Observer's Handbook and has also published over 190 scientific articles.
bolide a fireball that produces a sonic boom Bond, William Cranch 1789-1859 One of the earliest American astronomers of note; ...
See also: Meteoroid Stream Fireball A bright meteor with an apparent visual magnitude of -4 mag. or brighter. See also: Meteor, Meteorite, Meteoroid, Persistent train Geocentric Earth-centered. Heliocentric Sun-centered.
fireball bolide
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galaxy a gravitationally bound collection of millions or billions of stars, gas, ...
The basic cause of nuclear winter, as hypothesized by researchers, would be the numerous and immense fireballs caused by exploding nuclear warheads.
The left image shows the path of a fireball recorded over Hannover, Germany. The fireball outshines Sirius and the constellation Orion (Ref). The middle image shows a fireball recorded in the 1996 Perseid meteor shower by the Dutch Meteor Society.
- but now specially restricted to those luminous bodies known as shooting stars, falling stars, fireballs and bolides.
Brilliant meteors, known as fireballs, occur singly and generally consist of a luminous head, followed by a cometlike train of light that may persist for several minutes; some, called bolides, have been seen to explode with a sound like thunder.
At left, the fireball produced by the largest fragment of the comet exploding in the atmosphere is seen.
Fireball - an very bright meteor.
Full moon - The phase of the moon when the side facing the earth is completely lit by sunlight.
Geology - the study of the Earth.
Giant planets - Jupiter, Saturn, Uranus, and Neptune.
The predictions of calculations of the light element abundances produced in the early stages of the primordial fireball agree with observations only if the fractional contribution of baryons, ...
Those which are tougher survive longer and produce fireballs as their surface undergo melting and ablation at temperatures of several thousand degrees.
This stage was called the primordial fireball. For the first second, only elementary particles, such as protons, neutrons and electrons, could exist. But the universe quickly cooled and expanded.
However, observers were surprised by a burst of bright fireballs which were visible over Europe about 15 hours ahead of the predicted peak time.
The average density of meteoritic fireballs too small to reach the ground (but which can be captured by high-flying aircraft) is about 500"1000 kg/m3. Such a low density is typical of comets, which are made of loosely packed ice and dust.
So the formation and disintegration of a fireball in quark gluon plasma can be interpreted in black hole language.
This model, which is called the collapsar/hypernova model, is also sometimes known as the "fireball" model because the gamma-rays are produced inside the star as the stellar core collapses and the jets of material explode outward.
A popular theory is the neutron star-merger (aka "relativistic fireball") : a neutron star merges with another neutron star or a black hole. As a result, it releases the very energy-intense radiation.
The controllers looked at the screen that should be showing the interior of the Apollo capsule, all they could see was a fireball. Gus Grissom's voice came over the comms, "I've got a fire in the cockpit".
Physicist Jean-Baptiste Biot investigated the L'Aigle events. He found that people in other villages had seen a bright fireball in the sky just before the explosion.
fireball (astronomy)
meteor shower (astronomy)
meteor stream (astronomy)
meteorite (astronomy)
meteoritics (science)
meteoroid (astronomy)
radiant (astronomy)
solar system (astronomy)
sporadic meteor (astronomy) ...
A camera with a very wide field of view that can be used to observe the sky from horizon to horizon. Such instruments are used, for example, to study aurorae and for meteor and fireball patrols.
SONIC BOOM
A sonic boom is a very loud sound that is caused by a shock wave (pressure disturbance in the air) coming from an object which is traveling faster than the speed of sound. Fireballs and some fast aircraft can cause sonic booms.
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A spherical fireball would have no such abrupt transition. One way to see this is to note that initially, for a highly relativistic expansion, the jet and sphere will produce identical observed properties.
On almost any dark night, at least a few meteors may be seen. There are many more during several yearly meteor showers. Some display impressive fireballs, leaving cloudy trails behind.
The main character receives alchemic formulas instead of spells and by combining a wide variety of ingredients (such as wax, oil, limestone, and dry ice) a reaction will take place such as fireballs, healing, or shields.
This shower is known for its bright fireballs.
From August, 25th, till September 6th, the shower of the Alpha Aurigids is active. Although the annual maximum is about 9 meteors, outbursts of up to 30 were observed in 1935 and 1986.
 See also: Earth, Meteor, Light, Atmosphere, Time
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