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Belts

Astronomy BellatrixBelt-zone circulation

BELTS AND ZONES
Jupiter's gaseous surface is very windy, with wind speeds exceeding 400 mph (620 kph) in wide bands of latitude. Winds in adjacent bands blow in opposite directions.

 


Radiation Belts
Radiation Belts
The motion of energetic ions and electrons through space is strongly constrained by the local magnetic field.

The Van Allen Belts are regions of high radiation trapped by the magnetosphere which are rotationally symmetric about Earth's magnetic axis (which is tilted and offset from Earth's rotational axis).

Belts
Dark bands of clouds that circle Jupiter parallel to its equator; generally red, brown, or blue-green; believed to be regions of descending gas.
Big Bang Theory ...

The belts that carry Van Allen's name have two areas of maximum density. The inner region, consisting largely of protons with an energy greater than 30 million eV, is centered about 3,000 km above Earth's surface.

The belts now seem to be areas of rising atmospheric motion on Jupiter. That implies the motion in the zones is sinking, according to NASA atmospheric scientists Goddard Institute for Space Studies in New York.

The belts are a hazard for artificial satellites and moderately dangerous for human beings and difficult and expensive to shield against.

Dark 'belts' and lighter 'zones' characterise the visible appearance of Jupiter. Image from the Galileo spacecraft.

Mountain belts. These are found in the terrae of Venus and are in some ways similar to large mountain belts on the Earth such as the Himalayas of Asia and the Andes of South America. The best examples are the mountains that encircle Lakshmi Planum.

VAN ALLEN BELTS
The Van Allen radiation belts are two doughnut-shaped belts of ionized gas (plasma) that circle the Earth.

radiation belts Zones or belts of charged particles that are trapped in magnetic fields around the Earth. [More Info]
radiation-dominated universe Early epoch in the universe, when the density of radiation in the cosmos exceeded the density of matter.

Van Allen Belts
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Radiation belts at Uranus were found to be of an intensity similar to those at Saturn.

van Allen belts - (n.)
Zones in the earth's magnetosphere where charged particles are confined by the earth's magnetic field. There are two main belts, one centered at an altitude of roughly 1.5 times the earth' radius, and the other between 4.

Van Allen Belts
Radiation zones of charged particles that surround the Earth. The shape of the Van Allen belts is determined by the Earth's magnetic field.
Variable Star
A star that fluctuates in brightness. These include eclipsing binaries.

Van Allen Belts - Two doughnut-shaped regions in the Earth's magnetosphere within which many energetic ions and electrons are trapped
Velocity - A physical quantity that gives the speed of a body and the direction in which it is moving ...

Zones and Belts
All that we see is the top of the atmosphere. The light bands are called zones and the darker bands are called belts. The zones tend to be white or yellow, while the belts are often some shade of reddish brown.

Van Allen belts At least two doughnut-shaped regions of magnetically trapped charged particles high above Earth's atmosphere.
variable star A star whose luminosity changes with time.

Van Allen Belts- radiation zones of charged particles surrounding the Earth
Variable star- any star, the brightness of which appears to change, with periods ranging from minutes to years ...

Van Allen Belts
The zones surrounding the Earth which contain charged particles, trapped by the magnetosphere.
Venera
A program of the former Soviet Union which sent the first probes to the surface of Venus in the 1970's.

[+] Asteroid belts
Pages in category "Asteroids"
The following 9 pages are in this category, out of 9 total.

Figure 2. The belts and zones of the jovian atmosphere are apparent in this image of Jupiter taken by the Cassini spacecraft. Image credit: NASA.

single event upsets (NASA Thesaurus) Radiation-induced errors in microelectronic circuits caused when charged particles (usually from the radiation belts or from cosmic rays) lose energy by ionizing the medium through which they pass, ...

Argus (project) (Earth's Magnetosphere Glossary - GSFC) Argus (project)--A 1958 experiment by the US military, to create artificial radiation belts by exploding small nuclear bombs above the atmosphere.

The radiation belts surrounding Earth are known as the Van Allen belts.
Solar Atmosphere The atmosphere of the Sun. An atmosphere is generally the outermost gaseous layers of a planet, natural satellite, or star.

Belts - Dark bands around certain planets, like Jupiter.
Black hole - A region of space that nothing, not even light, can escape from.
Coma - The region around the head of a comet.

The only real problem that Scott and Irwin had with the Rover concerned the seat belts. Prior to the mission, no one had fully considered that, in the light lunar gravity, the suits wouldn't compress very much when the astronauts sat down.

[edit] Other Kuiper belts
Main article: Debris disk
As of 2006[update], astronomers have resolved dust disks believed to be Kuiper belt-like structures around nine stars other than the Sun.

Explorer 1 (U.S.A) discovers Van Allen radiation belts.
1959 A.D. Luna 1 (U.S.S.R.) escapes Earth's gravity.
1959 A.D. Vanguard 2 (U.S.A.) takes first photos of Earth.
1959 A.D. Luna 2 (U.S.S.R.) hits the Moon.
1959 A.D.

Jupiter's belts (its dark horizontal bands) are brighter in the infrared than its zones (its bright horizontal bands) This indicates that the belts are regions of hotter gas.

This would explain why the small propellors are found in narrow regions, or belts, of the ring, rather than spread all over.

Saturn's magnetosphere consists of a set of doughnut-shaped radiation belts in which electrons and atomic nuclei are trapped.

One common analogy used to describe the method of accumulating light and reading out charge is to consider a CCD as a series of buckets on a number of side-by-side conveyor belts.

Van Allen belts
Van Biesbroeck 8
Van Maanen's Star
variable stars
variable star naming
Varuna (minor planet 20000)
V-class asteroid
Vega (Alpha Lyrae)
Veil Nebula (NGC 6960, NGC 6979, NGC 6992/5)
Vela (constellation) ...

Contributing to Jupiter's radiation belts are particles from its moons Io and Europa. Volcanoes on Io spew out sulfur and oxygen atoms that collect in a donut-shaped cloud (torus) along the moons' orbit.

This field is responsible for the huge belts of trapped charged particles that circle the planet out to a distance of 10 million km (about 6 million miles).

(a) Two doughnut-shaped belts in the Earth's magnetosphere (inner belt some 3000 km above the surface; outer belt, 18,000-20,000 km above the surface), where many energetic charged particles from the solar wind are trapped in Earth's magnetic field.

The Earth can be sub-divided into specific latitudinal belts of approximately homogeneous climate. Ranging from the equator to the polar regions, these are the tropical (or equatorial), subtropical, temperate and polar climates.

Much of this argument centres on the Van Allen belts. These magnetic fields around the earth trap particles from the solar winds and the theory is that passing through these regions would have given the astronauts deadly amounts of radiation ...

The powerful, narrow jet streams deflect the clouds into belts moving parallel to the planet equators. The winds in a belt move in the opposite direction of the belt next to it. Large vortices can from from the interplay of the belts.

The Van Allen radiation belts are two doughnut-shaped belts of ionized gas (plasma) that circle the Earth.

This "radiation" is similar to, but much more intense than, that found within Earth's Van Allen belts. It would be immediately fatal to an unprotected human being.

[4] Greenstone belts are typical Archean formations, consisting of alternating units of metamorphosed mafic igneous and sedimentary rocks.

Disturbances in the solar wind shake the Earth's magnetic field and pump energy into the radiation belts. Regions on the surface of the Sun often flare and give off ultraviolet light and x-rays that heat up the Earth's upper atmosphere.

These particles create strong radiation belts. Around Io's orbit, the radiation belts are powerful enough to kill an unprotected human in a few minutes. That adds one more item to the list of Jupiter's superlatives: deadliest radiation belts.

2 hours, with about 15 hours of that inside the Van Allen Radiation Belts, forcing operators to shut down the science instruments while the Observatory is below 24,000 mi altitude.

A good amateur telescope should show you Jupiter's North and South Equatorial Belts, plus Jupiter's Great Red Spot.

The ions and electrons within the magnetosphere are a form of radiation 10,000 times more intense than Earth's deadly Van Allen belts.

The pattern of sunspots that show a time distribution concentrated in 35 degree wide belts on each side of the solar equator.

Light yellow and orange filters are useful in judging the colors of the low-hue cloud belts and zones of Jupiter and Saturn. To bring out a white area on a reddish background, a green filter is useful.

V
Van Allen, James A.
American physicist who discovered the Earth's radiation belts (that now bear his name) with an instrument aboard the first successful American satellite, Explorer 1.

Big hole drill was constructed out of 4.5 inch diameter block of wood and metal pipe made by soldering piece of steel sheet. Drill was powered by set of belts and a worm gear reducer to run at about 200 rpms. ...

Only with ALMA, however, can we hope to discover clumps in these dusty asteroid belts, which can be the markers of unseen planets.

More recent and much more sophisticated was the work of the American geologist Frank Taylor, who, disdaining the then-prevailing contraction model of mountain building, postulated in 1908 that the arcuate mountain belts of Asia and Europe resulted ...

List of laws in science
List of letters used in mathematics and science
List of satellites which have provided data on the magnetosphere
Physical constants
List of Artificial Radiation Belts
List of colors ...

31, 1958, returned data that was instrumental in the discovery of the Van Allen radiation belts. During the first decade of space exploration, all of the satellites were launched from either the United States or USSR.

Serious amateur astronomers and astrophotographers are usually aperture hungry to see faint galaxies, gas clouds and star clusters. For the less dedicated or beginning crowd, a small scope, up to about 5 inches, will show the rings of Saturn, belts ...

Because Chandra spends the majority of its orbit above the belts of charged particles which surround Earth, the satellite is able to provide long periods of observing time to astronomers.

In 1986 the Voyager spacecraft acquired additional occultations and also our best images of the ring system. The Voyager cameras detected a few additional rings and also showed that the nine major rings are surrounded by belts of fine dust.

See also: Earth, Light, Solar, Planet, Field