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Solar wind

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Solar Wind
Related Category: Astronomy: General
stream of ionized hydrogen—protons and electrons—with an 8% component of helium ions and trace amounts of heavier ions that radiates outward from the sun at high speeds.


Solar Wind
A time-lapse movie from the SOHO satellite showing the solar wind and a coronal mass ejection. Also visible are two sun-grazing comets that enter the solar atmosphere never to be seen again.
Credit: Courtesy of SOHO consortium.

Solar wind pulses strip
Mars' atmosphere
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Solar Wind :
The solar wind is a flux of particles, chiefly protons and electrons together with nuclei of heavier elements in smaller numbers, that are accelerated by the high temperatures of the solar corona, or outer region of the Sun, ...

Solar Wind
Approximately 5 particles cm-3 s-1 at the earth during quiet conditions.
References ...

Solar wind
Wikipedia, the free encyclopedia - Cite This Source
The solar wind is a stream of charged particles (i.e., a plasma) which are ejected from the upper atmosphere of the sun.

SOLAR WIND
The solar wind is a continuous stream of ions (electrically charged particles) that are given off by magnetic anomalies on the Sun.

The Solar Wind
"Plumes" of outward flowing, hot gas in the Sun's atmosphere may be one source of the solar "wind" of charged particles.

Solar wind (stream of particles from the Sun) is usually around 0.001 joules per square meter per second -- about a million times less than sunlight.
Best wishes,
Koji Mukai & Jonathan Keohane
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It takes the solar wind about 4.5 days to reach Earth; it has a velocity of about 250 miles/sec (400 km/sec). Since the particles are emitted from the Sun as the Sun rotates, the solar wind blows in a pinwheel pattern through the solar system.

On The Day The Solar Wind Disappeared, Scientists Sample Particles Directly From The Sun
Courtesy NASA
(December 13, 1999) ...

Solar Wind and Magnetosphere
The earth is constantly immersed in the solar wind, a rarefied flow of hot plasma (gas of free electrons and positive ions) emitted by the sun in all directions, ...

Solar Wind Variations
The solar wind is not uniform. Although it is always directed away from the Sun, it changes speed and carries with it magnetic clouds, interacting regions where high speed wind catches up with slow speed wind, ...

Solar Wind Plasma Package for measuring solar wind plasmas and electrons
Fields Package to measure electromagnetic fields
Particles Package for energetic particles, neutrons, gamma-rays, and dust measurements ...

solar wind An outward flow of fast-moving charged particles from the Sun.
south celestial pole Point on the celestial sphere directly above the Earth's south pole.

solar wind: The charged particles (plasma), primarily protons and electrons, that are continuously emitted from the Sun and stream outward throughout the solar system at speeds of hundreds of kilometers per second.

Solar Wind: The outward flow of plasma (high energy charged particles from the sun. Average speeds are about 350 km/sec. (go to first use in the text) ...

Solar Wind: The solar wind streams off of the Sun in all directions. The source of the solar wind is the Sun's hot corona, whose temperature is so high that the Sun's gravity cannot hold on to it.

SOLAR WIND - Supersonic flow of high-speed charged particles continuously blowing off a star (mostly e- and p+). When originating from stars other than the Sun, it is sometimes called a "stellar" wind.

Solar wind--hot solar plasma spreading from the solar corona in all directions, at a typical speed of 300-700 km/sec. It is caused by the great heat of the corona.
Space tether--see tether, space ...

solar wind
An outward flow of particles (mostly electrons and protons) from the Sun.
south celestial pole
The point directly above the Earth's south pole where the Earth's axis of rotation, if extended, would intersect the celestial sphere.

solar wind
The constant flow of charged particles from the Sun, extending throughout the solar system.
solid planet
A planet composed of rocky materials with relatively thin or non-existent atmospheres.

Solar Wind
Rapidly moving atoms and ions that escape from the solar corona and blow outward through the solar system.
Special Relativity ...

Solar Wind
a flow of charged particles that travels from the Sun out into the Solar System.

Solar wind: The stream of charged particles and atoms (mainly ionized hydrogen but actually a mixture of all atoms in the Sun) moving outward all the time from the Sun with low velocities in the range 300-500 kilometers per second.

Solar wind. The flow of particles from the Sun in every direction. The 'wind' is an ever present feature of the Sun but the intensity of the wind is dependant on Solar activity.

Solar Wind - The hot plasma that flows outward from the Sun
Solidification Age - The amount of time that has passed since a meteorite solidified from the molten state ...

SOLAR WIND
A stream of particles such as protons, electrons and ions moving radially outwards from the Sun.
SOLSTICE ...

solar wind: The wind from the Sun. More specifically, particles, usually electrons and protons, continually streaming away from the corona of the Sun.


SOLAR WIND TERMINATION SHOCK
The solar wind (heliospheric) termination shock is the shock that occurs as the solar wind hits the heliopause and its speed slows greatly (down to about 20 km/s).
...

Solar wind- charged particles from the sun that travel into the Solar System at about 1.5 million kph (932,000 mph)
Solstice- the time when the sun reaches its greatest northern or southern declination ...

The solar wind
The solar corona is the outermost part of the Sun's atmosphere.

The solar wind is a Electric current—a Plasma —ejected from the stellar atmosphere of the sun. It consists mostly of electrons and protons with energies of about 1 electron volt....

Solar Wind. Pioneer-Venus 1 still is in orbit around Venus, using radar to map the planet surface and send back data about the solar wind.

Solar Wind - Space and Astronomy Definition - Online Dictionary and Glossar...
Solar Flare - Space and Astronomy Definition - Online Dictionary and Glossa...
planetary nebula - Space and Astronomy Definition - Online Dictionary and G...

Solar wind termination shock The shock caused by the sudden slowing of solar wind as it approaches the heliopause.

Solar Wind
Streams of charged particles flowing from the Sun at millions of kilometers an hour. The composition of this high-speed solar wind may vary, but it always streams away from the Sun.

Solar Winds
As the Sun burns hydrogen at its core, it releases vast amounts of atomic particles, or pieces of atoms into outer space. These atomic particles, along with the Sun's radiation create a sort of wind, known as the solar wind.

solar wind A flow of hot charged particles leaving the Sun. [More Info: Field Guide]
south celestial pole Point on the celestial sphere directly above the Earth's south pole.

solar wind
The constant stream of atomic particles flowing outwards from the Sun
solstice ...

solar wind - (n.)
The stream of charged subatomic particles flowing steadily outward from the sun.
solid angle - (n.) ...

The solar wind has an electron density of about 5 per cc over path lengths of about 150 million km giving an even greater optical depth. This would not affect moonbounce work but would make VHF radio astronomy impossible.

The solar wind is not the major problem for a trip to Mars - shielding agains that is easy enough with a few cms of perspex or a few mm of Al. The real challenge is high-energy cosmic rays.

A model of the solar wind which has two thermal components - electron and proton gases of differing temperatures.
Tycho's Star ...

solar wind (From Stargazers to Starships Glossary - GSFC) A fast outflow of hot gas in all directions from the upper atmosphere of the Sun ("solar corona"), which is too hot to allow the Sun's gravity to hold on to its gas.

solar radii (R.) Solar System solar wind continuous stream of charged particles (mostly protons and electrons) ejected radially from the Sun at high velocities.

shooting star another name for a meteor solar something having to do with the sun solar flare a storm or eruption of hot gases on the sun solar system the sun, and all the planets and other objects that orbit around it solar ...

solar wind Streams of plasma flowing approximately radially outward from the sun. solar year = tropical year. solenoid A tube formed in space by the intersection of unit-interval isotimic surfaces of two scalar quantities.

The corona is also the source of the solar winds, steady streams of particles that are blown off from the Sun. These particles can on occasion interact with the Earth's atmosphere and produce the aurora, or northern lights.

Velocity of the Sun (19.4 km sin the direction lII = 51, bII = 23) with respect to the local standard of rest. [H76]
Solar Wind ...

The issue of the solar wind eroding the atmosphere of a terraformed Mars has not been addressed in detail, because it is still unclear whether humans have the economic means to terraform Mars.

Wind studies the solar wind and its impact on the near-Earth environment. This mission is part of SMD's Heliophysics Research program.
19941101 November 01, 1994
3Operating ...

Typical auroras occur 100 to 250 km above the ground as high speed particles from the SOLAR WIND collide with atmospheric gasses at these altitudes.

A feature of the SOLAR WIND having velocities that are about double average solar wind values. HOMOLOGOUS FLARES.

1959 - Moon - Success - Luna 1 flyby launched, it discovered solar wind
1959 - Moon - Pioneer 4 flyby
1959 - Moon - Success - Luna 2 lander launched, it was the first spacecraft to impact onto he surface of the moon ...

The Earth's magnetosphere consists of a dipole field, similar to that of a bar magnet, and a long tail on the night side produced by the interaction of the solar wind with the Earth's magnetic field.

The boundary marking the edge of the sun's influence where the solar wind and the wind from other stars meet is about 100 and 150 astronomical units from the sun. An astronomical unit (AU)is the distance between the Earth and Sun.

The corona is the seat of the solar wind Prominences are threads of cool gas that lie in the corona and are supported by magnetic fields. (From Stars, J. B. Kaler, Scientific American Library, Freeman, NY, 1992.)
After 4.

NASA's venerable Pioneer 7, launched in 1966, was still going strong twenty years later when it observed the interaction between the tail of 1P/Halley and the solar wind.

This barely extant atmosphere includes trace amounts of hydrogen and helium from the solar wind. In 1991, very powerful radio telescopes noticed large sheets of ice contained on the poles, areas unseen by Mariner 10.

Many comets have two tails, a gas tail (also called the ion tail) composed of ions blown out of the comet away from the Sun by the solar wind, and a dust tail composed of dust particles liberated from the nucleus as the ices are vaporized.

This radiation was also embedded in strong Solar winds that carried magnetic storms outward from the Sun.

A phenomenon produced when the solar wind (made up of energized electrons and protons) disturbs the atoms and molecules in a planet's upper atmosphere.

The solar winds push the dust and gas away from the coma causing them to stream off into space to form the comet's tail. The solar winds cause the comet's tail to point away from the Sun.

But the surface of the Moon is blasted with a stream of particles from the Sun- the solar wind- which act like a gentle abrasive which sputters sodium and potassium atoms off the lunar surface.

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 poisoning.

As astronomer there, Antony Hewish, decided to study the rapid variations that would result because of the radio wave's passage through the stream of ionized gas given off by the sun known as the "solar wind" (in particular the electrons in the ...

The thought was that when the solar wind from the Sun first began during the formation of our solar system, the light gases such as hydrogen and helium were blown away from the Sun, out towards the developing outer planets.

Short Description: Students use iron powder to model the solar wind.

Solar wind : aurora, comet tails pushed back
Solar activity, sunspots, magnetic fields, cooler
Sunspot cycle, magnetic field cycle, differential rotation
Prominences, flares, coronal mass ejections ...

Radiation pressure and solar wind effects result in a comet's tail always pointing directly away from the Sun. NightSkyInfo.com Diagram [Larger Image]
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2. From where does Comet ISON come?

I remember a news flash earlier that day from SpaceWeather that one of NASA's spacecraft detected a sudden increase in particle density and speed of the solar wind.

It was reasoned that the apparent motion of the pulsar was actually due to the modulation of the solar wind in that direction.

Beautiful ribbons of light caused by the interaction of high-energy particles in the solar wind and Earth's magnetic field.

magnetosphere
the region of space in which a planet's magnetic field dominates that of the solar wind.
magnetotail
the portion of a planetary magnetosphere which is pushed in the direction of the solar wind.

As no radiant sunlight or solar wind escaped from the sphere, starships were not able to detect it until they were almost on top of it.

Heliosphere: Region of the sun's influence where its solar wind dominates over those from other stars and the galaxy as a whole.
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Since comets range in size from a small boulder to larger than a mountain, as they fall closer to the Sun, the loose bits of dust and ice that make up the comet begins to heat up and then gets blown back by the solar wind.

Comet
A body of the solar system, composed of ices and rocks. The frozen material evaporates as the comet approaches the sun and, driven away by the solar wind, forms the comet tail.
(More information can be found here.) ...

Diffuse streamers of gas and dust released from a comet and blown in the direction away from the Sun by the solar wind.
comparative planetology ...

Magnetosphere: Region around a planet in which its magnetic field dominates the interplanetary field carried by the solar wind.

As a comet's nucleus is usually quite small, it is not able to retain its coma for long periods of time, and the coma material gradually drifts away into space (helped out by the solar wind).

The gas tail is created by the solar wind, whose magnetic fields pull the gas away from the comet's coma. The dust in the coma is not affected by magnetic fields but is vaporized by the Sun's heat, and forms a curved tail due to the comet's orbit.

The reason for this state of affairs, put simply, is that when the Solar System was born, most of the gases near the Sun were soon either vapourised or blown away by the Solar wind so that only heavy metal & ...

In May I will tell you about the aurora and that requires an understanding of some extra Sun physics, so it's at that point I will teach you about the Sun's magnetic field, sunspots, solar flares and the solar wind.

See also: See also: Solar, Sun, Earth, Astro, Planet

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