Home (Solar flare)
Home  
 
 
Home » Astronomy » Solar flare


 

Solar flare

Astronomy Solar EclipseSolar flares

Solar flare
A Solar Flare and CME, courtesy NASA
A solar flare is a violent explosion in the Sun's atmosphere with an energy equivalent to tens of millions of hydrogen bombs.

 


Solar flares are classified as A, B, C, M or X according to the peak flux (in watts per square meter, W/m²) of 100 to 800 picometer X-rays near Earth, as measured on the GOES spacecraft.

Solar Flares
The Sun Shines on Compton's Front Porch
SOON Telescope image of a solar flare.
CREDIT: Holloman AFB/NOAA ...

Solar flares were first observed by in 1859 by Lord Richard C. Carrington. He wrote that as he was watching the sun with a telescope, he saw "two patches of intensely bright and white light" near a huge group of sunspots.

Solar flare
From Memory Alpha, the free Star Trek reference.
Jump to: navigation, search ...

A solar flare is a spontaneous release of energy on the Sun's surface. The Sun's surface contains large magnetic loops. These loops, solar prominences, occasionally collide and short-circuit each other. This is what causes solar flares.

Definition: Solar Flare: A storm or eruption of hot gases on the Sun.
Space Tragedies9 Planets in Nine DaysAstronomy 101
Related Articles ...

The white, feathery object in the center is the solar flare that caused the quake. A solar flare is an explosion in the atmosphere of the Sun, caused by the tearing and reconnection of strong magnetic fields.

Can solar flares and sunspots affect Earth?
While no direct link between sunspots and Earthly events, such as volatile stock markets, has ever been found, extremes in sunspot activity have been correlated in some cases with climate changes on Earth.

Solar flares are often observed using filters to isolate the light emitted by hydrogen atoms in the red region of the solar spectrum (the H-alpha spectral line).

Solar flares are areas around sunspots that brighten sharply when seen through a telescope because of an enormous energy release. One of the main characteristics that distinguishes solar flares from other solar events is how suddenly they occur.

Solar flares are like enormous explosions on the surface of the Sun in which streams of charged particles are emitted into space.

Solar flare An enormous explosion of gas in the solar atmosphere resulting in a sudden burst of particle acceleration, the heating of plasma and the eruption of large amounts of solar mass. This image of a solar flare is courtesy of NASA JSC.

Solar Flares
Another phenomenon occurring in the chromosphere is the solar flare, a sudden and intense brightening in a plage that rises to great brilliance in a few minutes, then fades dramatically in a half hour to several hours.

Solar flares are an example of explosion common on the Sun, and presumably on most other stars as well.

Solar Flares
During periods of high solar activity, the Sun commonly releases massive amounts of gas and plasma into its atmosphere. These ejections are known as solar flares. Some solar flares can be truly massive, and contain impressive power.

Solar flares affect the communication in other ways, too. They produce radio frequency interference (solar radio noise) trough their radio bursts, and degrade high frequency radio propagation at high latitudes via polar cap absorption (PCA).

solar flare
vacation spot
Sun storm
Show me the Level 2 version of this page.

solar flare An outburst caused by the sudden release of energy that heats and accelerates matter in the solar atmosphere, and produces a sudden brightening over a wide range of wavelengths.

Solar flares are eruptions more powerful than surge prominences (a flare is shown in the Sun + planets montage above). They will last only a few minutes to a few hours. A lot of ionized material is ejected in a flare.

solar flare - (n.)
An explosive outburst of ionized gas from the sun, us ally accompanied by X-ray emission and the injection of large quantities of charged particles into the solar wind.
solar mass (Mg) - (n.) ...

Solar flare
A solar flare is a violent explosion in a star's atmosphere releasing as much energy as 6 × 1025 Joules.

Solar Flare Theory Homepage
Table of Contents
Web Author: Gordon Holman
Web Author: Sarah Benedict ...

Solar flare: A brilliant outbreak in the Sun's outer atmosphere, usually associated with active groups of sunspots.
Solar System: A star and the non-luminous objects associated with it, which may include brown dwarfs, planets, asteroids, and comets.

Solar Flare
A bright eruption of hot gas in the Sun's photosphere. Solar prominences are usually only detectable by specialized instruments but can be visible during a total solar eclipse.

Solar flare--a rapid outburst on the Sun, usually in the vicinity of active sunspots.

solar flare
A violent eruption of gases into the solar atmosphere from the solar photosphere.
solar mass
Defined as a unit of mass equal to the mass of the Sun. It is useful to define the mass of stars.

solar flares
Violent eruptions of gas on the Sun's surface.
spectral line
Light given off at a specific frequency by an atom or molecule.

Solar Flare
Sudden and dramatic release of a huge burst of solar energy through a break in the Sun's chromosphere in the region of a sunspot. Effects on Earth include aurorae, magnetic storms and radio interference.
Solar Mass ...

Solar flare: A region of exceptional brightness in an atmospheric layer of the Sun, often associated with sunspots of complex magnetic fields.
Solar power: Energy derived from the Sun or sunlight for use as a source of electricity.

solar flare -- a sudden increase in brightness of a small region on the Sun. This flare is caused by a magnetic disturbance.
solar nebula -- the rotating disk of gas and dust from which the Sun and planets formed.

Solar flares are probably triggered when oppositely directed magnetic fields come together in the corona, releasing their stored magnetic energy in a manner similar to that of a tightly twisted rubber band that suddenly snaps.

Solar Flare - An explosive release of solar magnetic energy
Solar Motion - The motion of the Sun with respect to the nearby stars ...

A solar flare is a magnetic storm on the sun, which appears to be a very bright spot, and a gaseous surface eruption. Solar flares are classified based upon their x-ray energy output at peak burst intensity.

Limb Flare. A solar flare seen at the edge (limb) of the Sun.
Low Frequency (LF). That portion of the radio frequency spectrum from 30 to 300 kHz.

"Who's Afraid of a Solar Flare? Solar activity can be surprisingly good for astronauts." Oct. 7, 2005, at Science@NASA]
See also
cosmogenic nuclides
cosmic ray spallation ...

solar flare See flare. solarimeter 1. = pyranometer. 2. Specifically, a pyranometer consisting of a Moll thermopile covered by a bell glass. solar parallax The angle at the sun subtended by the equatorial diameter of the earth. See parallax.

In these cases, the time between solar flare and onset of the magnetic storm is about 1 or 2 days, suggesting that the disturbance is carried to the earth by a cloud of particles thrown out by the sun.

The indicative of solar flare importance given by the sum of the following five components a) Importance of ionizing radiation as indicated by time- associated Short Wave Fade or Sudden Ionospheric Disturbance; ...

The most spectacular phenomenon related to sunspot activity is the solar flare, which is an abrupt release of magnetic energy from the sunspot region.

" During an intense Solar flare (electron density 1011 compared with 108 in Solar quiet times) the ionization in Earth's atmosphere may increase by several orders of magnitude.

Detected across 16 light-years as x-rays, astronomers estimated that the energy emitted in the brown dwarf flare was comparable to a small solar flare, which is a billion times greater than X-ray flares observed from Jupiter.

Tremendous eruptions called solar flares eject particles and emit radiation into space. These solar storms begin in a few seconds and can last up to four hours. Temperatures within these flares can reach five million degrees.

A magnetic storm is a temporary perturbation (disruption) of the Earth's magnetic field, caused by solar flares, which eject plasma from the Sun's chromosphere.

On its surface dark sunspots bounded by intense magnetic fields come and go in 11-year cycles, which recent evidence shows may actually be part of longer 19-year cycles; sudden bursts of charged particles from solar flares can cause auroras and ...

Priest, E. R. (Ed.). Solar Flare Magnetohydrodynamics. New York: Gordon and Breach, 1981.
Ryan, J. M. et al. . High-Energy Solar Phenomena.

What is a solar flare?
What is a prominence?
What does a spicule do in a chromosphere?
What kind of layers does the chromosphere have?
How does the flash spectrum relate to the chromosphere?
What is the temperature of the lower chromosphere?

Atomic nuclei that enter earth's atmosphere at nearly the speed of light. Some originate in solar flares, and some may come from supernova explosions, but their true nature is not well understood.
Cosmological Principle ...

They identified a low frequency signature of solar flare material interacting with the heliopause at an estimated distance of 40 to 70 AU ahead of Voyager 1's location, which was 52 AU from the sun at the time.

At totality, the disc of the Sun is completely obscured by the new Moon, and only the ghostly solar corona and perhaps gigantic solar flares are visible around the edges of the Moon.

sunspots and faculae in the photosphere
plages, fibrils, and filaments in the chromosphere
coronal condensations in the corona.
Solar flares are also associated with active regions.

A sudden and violent outburst of solar energy that is often observed in the vicinity of a sunspot or solar prominence; also known as a solar flare.
Flat Universe ...

The solar wind and the much higher energy particles ejected by solar flares can have dramatic effects on the Earth ranging from power line surges to radio interference to the beautiful aurora borealis.

Examples include prominences, which are great arcs of gas that extend outwards from the Sun, and solar flares which are great explosions and jets of gas from the solar surface.

While observing Nekkar in August of 1993, the Rosat X-ray satellite detected the star to pop a large 10-minute X-ray flare many times the strength of a typical bright solar flare (which produces an intense patch of brightness on the solar surface), ...

See also: Flare, Solar, Sun, Earth, Flares