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Topic: Solar flare


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In the News (Sun 21 Apr 19)

  
  Solar Flare, Solar Flares, Solar Flare Picture, Solar Flares And Human Behavior, Solar Flare Activity at SPACE.com
A solar flare is a thunderous explosion that occurs in the solar corona and chromosphere within the atmosphere of the Sun.
Solar flares are typically classified as A, B, C, M or X, depending upon the degree of their peak flux.
During the occurrence of a solar flare, plasma is heated to tens of millions degrees Kelvin, while electrons, protons and heavier ions are accelerated to near the speed of light.
www.space.com /solar-flares   (452 words)

  
 CNN.com - Cloud of solar gas strikes our planet - Oct. 24, 2003
The bright eruption near the center of the sun's surface, witnessed by the SOHO satellite, reveals the source of the solar salvo.
The X-rays were associated with strong solar disturbances this week, in particular a coronal mass ejection (CME) on Wednesday that sent a stream of energized particles in the direction of our planet.
The solar stream erupted from a cluster of sunspots on the surface of the sun.
www.cnn.com /2003/TECH/space/10/24/solar.forecast/index.html   (594 words)

  
  NGDC/STP - On-Line Glossary of Solar-Terrestrial Terms
Solar flares that occur repetitively in the same ACTIVE REGION, with essentially the same position and with a common pattern of development.
Of the white-light CORONA (that is, the corona seen by the eye at a total solar eclipse), that portion which is caused by sunlight scattered by electrons in the hot outer atmosphere of the sun.
This flare is the basis for the forecast of geomagstorm, cosmic storm and/or protons in the earth's vicinity.
www.ngdc.noaa.gov /stp/GLOSSARY/glossary.html   (2480 words)

  
  IPS - The Sun and Solar Activity - Solar Flare Patrol
Solar flares are transient brightenings of the chromosphere that may last for a few minutes to a few hours.
The solar P angle (tilt of the solar central meridian from the Earth based north-south line in the viewing plane), and the solar B angle (tilt of the solar polar axis perpendicular to the observing plane or solar disc), must be taken into account in the computation of the coordinates.
Flare brightness is probably one of the least useful and least reproducible parameters of flare characterisation, depending strongly on the characteristics of the H-alpha filter employed.
www.ips.gov.au /Educational/2/5/2   (2488 words)

  
 Kenston High School ~ Solar Flare   (Site not responding. Last check: )
Solar flares are tremendous explosions on the surface of the Sun.
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).
The flare (the bright area) lies along a section of a neutral line where the magnetic field is twisted (or sheared) to point along the neutral line instead of across it.
www.kenston.k12.oh.us /khs/current/solar-flare.htm   (592 words)

  
 Earth Changes TV - Violent solar flare is preview of space weather to come
In a preview event, the Sun on Saturday belched a tremendous bundle of charged particles outward from its surface, a solar flare of significant proportions that was accompanied by a coronal mass ejection, a related event in which plasma, a superheated mix of charged particles, races outward from the Sun.
Solar flares, one type of "space weather" associated with the solar maximum, release tremendous amounts of energy, equivalent to a million hundred-megaton nuclear explosions, in just moments.
The frequency of solar flares is expected to increase with the number of sunspots during the rise to the maximum.
www.earthchangestv.com /solarflares/Violentsolarflare.htm   (703 words)

  
 Solar Flare - Search Results - MSN Encarta   (Site not responding. Last check: )
Solar Flare, violent release of magnetic energy in the inner atmosphere of the Sun and other stars.
Flares are most common at times of high sunspot...
The Sun emits cosmic rays of low energy at the time of large solar flares, but these events are far...
uk.encarta.msn.com /Solar_Flare.html   (144 words)

  
 Solar Flare Leaves Sun Quaking
Now that they know how to find them, the SOHO scientists say that the seismic waves generated by solar flares should allow them to verify independently some of the conditions in the solar interior that they have inferred from studying the pattern of waves that are continually ruffling the Sun's surface.
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.
www.solarviews.com /eng/sohopr3.htm   (974 words)

  
 Solar-B :: For Educators :: Ask Dr. Flare
Solar flares are sudden releases of energy on the solar surface lasting several minutes to a few hours.
Only in the inner corona closest to the solar surface are the conditions favorable for us to view the corona during an eclipse, even so, its brightness is overwhelmed by the light coming from the disk of the Sun itself where temperatures are far lower, but densities are millions of times higher.
Solar flares also produce several different classes of bursts of radio emission, but you need a radio telescope set-up with a very sensitive receiver and a 'dish' to detect them.
solarb.msfc.nasa.gov /for_educators/flarefaq.html   (1059 words)

  
 The “Solar Flare Myth” Revisited
At solar maximum the magnetic equator of the Sun, called the streamer belt or heliospheric current sheet, is highly inclined to the ecliptic so it passes near the solar poles.
In the case of impulsive flares, detailed plasma physics produces millisecond radio spikes involving pulsed electron beams with spatial scales as small as 10 km; multiple injections combine to form both type III radio and hard X-ray bursts, and beam-generated waves are resonantly absorbed to enhance energetic 3He.
Flares are also confined to a few degrees on the Sun but large SEP events (and interplanetary shocks) are seen over a span of ~180°, sometimes more.
lheawww.gsfc.nasa.gov /~reames/DARK7.HTML   (2556 words)

  
 CNN.com - Sun erupts in biggest storm in years - Oct. 29, 2003
The Solar and Heliospheric Observatory satellite spies the third most powerful solar flare on record, the bright blip near the sun's middle, on October 28.
The outburst was classified an X17.2 flare, the third largest on record, according to Paal Brekke, a project scientist with the Solar and Heliospheric Observatory (SOHO), a sun-watching satellite mission jointly run by NASA and the European Space Agency.
Solar flares are associated with coronal mass ejections, or CMEs, eruptions from the sun that, if headed our way, can disrupt communications satellites and power grids.
cnn.com /2003/TECH/space/10/28/solar.flare   (512 words)

  
 Huge Solar Flare Spotted
Scientists are currently tracking a very large flare that occurred on the Sun around 1:40 pm EDT (17:40 UT).
Image: Wednesday's solar flare is visible on the left side of this solar image taken by the Earth-orbiting GOES Solar X-Ray Imager (SXI).
Solar flares and coronal mass ejections (CMEs) -- associated giant clouds of plasma in space -- are the largest explosions in the solar system and can pack the force of a billion megaton nuclear bombs.
www.physorg.com /news6327.html   (419 words)

  
 Spaceweather Glossary: The Classification of X-ray Solar Flares
A solar flare is an explosion on the Sun that happens when energy stored in twisted magnetic fields (usually above sunspots) is suddenly released.
Flares produce a burst of radiation across the electromagnetic spectrum, from radio waves to x-rays and gamma-rays.
Scientists classify solar flares according to their x-ray brightness in the wavelength range 1 to 8 Angstroms.
www.spaceweather.com /glossary/flareclasses.html   (195 words)

  
 Solar-B :: For Educators :: Interactive Pages
Solar physicists studying the gases at the tops of pre-flare loops have begun to see this heating process take place.
Only the most powerful solar flares are capable of launching these billion-ton clouds of gas into interplanetary space, although it is sometimes possible for a large number of smaller flares to make this happen as well.
The intensity of the flare, and the energies of the particles that have been emitted during reconnection, begin to wane in strength as the new magnetic field shape starts to relax into a less distorted shape.
solarb.msfc.nasa.gov /for_educators/learn/flaresinfo.html   (1012 words)

  
 NASA/Marshall Solar Physics
Solar flares are tremendous explosions on the surface of the Sun.
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).
The flare (the bright area) lies along a section of a neutral line where the magnetic field is twisted (or sheared) to point along the neutral line instead of across it.
solarscience.msfc.nasa.gov /flares.shtml   (528 words)

  
 Solar flare - Memory Alpha, the Star Trek Wiki
A solar flare (or solar plasma eruption) is an explosion in a star's atmosphere, that accelerates plasma into space at great speeds.
In 2353, a Kohl planet was rendered temporarily uninhabitable by a solar flare.
During a scan of Aldean DNA, Doctor Beverly Crusher was able to confirm that solar flare variations were not responsible for the Aldeans' sterility.
memory-alpha.org /en/wiki/Solar_flare   (265 words)

  
 Augusta Georgia: technology@ugusta: NASA satellite detects solar flare 4/10/97
Federal scientists said the the recent solar flare is the fourth this year and there is no indication that it will cause problems.
This solar flare holds special fascination for scientists because it occurred during a relatively quiet time on the sun, and for the first time there were satellite instruments that detected the movement of matter during the flare.
Solar flares put out a number of types of radiation that is measured.
chronicle.augusta.com /stories/041097/tech_flare.html   (673 words)

  
 About Solar Flare » Solar Flare: Science Fiction News
Solar Flare is blog providing news, reviews and commentary from the worlds of fantasy and science fiction with a bias towards my own personal favorites.
Solar Flare: Science Fiction News is the current incarnation and in taking on the blog format I have chosen to emphasize my opinions and tastes while reporting news.
Solar Flare: Science Fiction News is © 2007 Eoghann Irving - Contact Me.
www.sflare.com /archives/about-solar-flare   (280 words)

  
 Universe Today » Archive » Killer Solar Flare… on Another Star
The flare was seen in December 2005 on a star slightly less massive than the sun, in a two-star system called II Pegasi in the constellation Pegasus.
Solar flares on the sun originate in the corona, the outermost part of the sun's atmosphere.
The flaring star in II Pegasi is 0.8 times the mass of the sun; its companion is 0.4 solar masses.
www.universetoday.com /2006/11/07/killer-solar-flare-on-another-star   (930 words)

  
 NASA - Tuesday/Wednesday Solar Punch
The third most-powerful solar flare ever observed in X-ray wavelengths erupted from Sunspot 486 early October 28, 2003, at approximately 6 a.m.
The also-powerful CME, which solar scientists think was accelerated by the eruption of the flare, is headed toward us at 2,000 kilometers per second (1,250 miles per second), nearly five times faster than a normal CME, says Bernhard Fleck, ESA SOHO Project Scientist.
The strongest flare of this solar cycle, in April 2000, a category X20 flare, was not directed at Earth.
www.nasa.gov /vision/universe/solarsystem/10.28Flare.html   (834 words)

  
 Solar Flares   (Site not responding. Last check: )
Coronal mass ejections often accompany solar flares, though scientists are still trying to determine exactly how the two phenomena are related.
Solar flares burst forth from the intense magnetic fields in the vicinity of active regions on the Sun.
Solar flares are most common during times of peak solar activity, the "solar max" years of the sunspot cycle.
www.windows.ucar.edu /tour/link=/sun/atmosphere/solar_flares.html   (270 words)

  
 ScienceMaster - JumpStart - Solar Flares
A solar flare occurs when magnetic energy that has built up in the solar atmosphere is suddenly released.
Solar flares are the most energetic explosions in the solar system.
Solar flares provide an opportunity to study physical processes in nature that are similar to those that occur in laboratory devices designed for the purpose of achieving controlled thermonuclear fusion.
www.sciencemaster.com /jump/space/flares.php   (1259 words)

  
 NGDC/WDC STP, Boulder-Solar Flare Data via FTP from NGDC
A solar flare is a short-lived sudden increase in the intensity of radiation emitted in the neighborhood of sunspots.
Flares are characterized by a rise time of the order of minutes and a decay of the order of tens of minutes.
The optical brightness and size of the flare are indicated by a two-character code called "importance." The first character, a number from 1 to 4, indicates the apparent area.
www.ngdc.noaa.gov /stp/SOLAR/ftpsolarflares.html   (1613 words)

  
 Solar Flare
For those unaquainted with the magnitude of Solar Flares it may be difficult to comprehend the extreme force of such an explosion which is the largest ever recorded in the Solar System.
The largest of these measured X 18 on the Solar flare scale (see pic below) A cluster of other X flare explosions within a matter of days made this one of the greatest periods of Solar activity on record.
On a larger scale our research clearly shows that Solar activity has the potential to trigger general social unrest even to the point of inciting wars, riots, revolutions, and a deteriorating state of International harmony.
www.nasca.org.uk /Strange_Maps/solar/Solar_Flare/solar_flare.html   (1059 words)

  
 AstroAlert - Sun-Earth Reports
This solar cycle reinforces previous cycles where the bulk of the most energetic solar activity does not occur at the sunspot maximum (when the number of sunspots peppering the face of the Sun is at a maximum), but rather during the declining years of the sunspot cycle.
This solar flare was associated with a partially Earthward-directed coronal mass ejection that should provide at least a minor enhancement in auroral activity on 23 July.
Based on a preliminary extrapolation, it appears that this x-ray flare peaked somewhere between the X30 and X40 levels, which was unheard of until yesterday and is possibly as much as twice as energetic as the X17 solar flare observed on 02 November.
www.spacew.com /astroalert.html   (2105 words)

  
 Spaceflight Now | Breaking News | Monster stellar flare dwarfs all others seen
The flare was seen in December 2005 on a star slightly less massive than the sun, in a two-star system called II Pegasi in the constellation Pegasus.
Solar flares on the sun originate in the corona, the outermost part of the sun's atmosphere.
The flaring star in II Pegasi is 0.8 times the mass of the sun; its companion is 0.4 solar masses.
www.spaceflightnow.com /news/n0611/06monster   (1357 words)

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