Posts Tagged ‘solar flare’

25 February

Yesterday’s Magnificent Solar Flare Unleashed From The Sun

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Solar Flare-Multi-wavelengths, Feb. 24, 2014 (credit: NASA/SDO, Solar Dynamics Observatory). This design is also available at www.sunisthefuture.com

Wow, yesterday (Monday, Feb. 24, 2014), the sun emitted a significant solar flare, peaking at 7:49 P.M. (EST). NASA’s SDO (Solar Dynamics Observatory), keeping the constant watch on the sun, captured images of the event. Above you are seeing the SDO images from 7:25 P.M. EST showing the first moments of this x-class flare in different wavelengths of light (in units of angstrom, A with circle above, 1.0 x 10^(-10) meters), seen as the bright spot on the left limb of the sun. Hot solar material can be seen hovering above the active region in the sun’s atmosphere, the corona. This flare is classified as an X4.9-class flare. X-class denotes the most intense flares while the number provides more information about its strength. An X2 is twice as intense as an X1 whereas X3 is three times as intense as X1.

Below (in italics), is wikipedia’s explanation of the sun, solar flare and CME (coronal mass ejections) and a previously uploaded video by sunisthefuture channel :


solar flare is a sudden brightening observed over the Sun‘s surface or the solar limb, which is interpreted as a large energy release of up to 6 × 1025 joules of energy (about a sixth of the total energy output of the Sun each second or 160,000,000,000 megatons of TNT equivalent, over 25,000 times more energy than released from the impact of Comet Shoemaker–Levy 9 with Jupiter). They are mainly followed by a colossal coronal mass ejection also known as a CME. The flare ejects clouds of electrons, ions, and atoms through the corona of the sun into space. These clouds typically reach Earth a day or two after the event. The term is also used to refer to similar phenomena in other stars, where the term stellar flare applies.

 

Solar Flare of May 3, 2013 (credit: NASA/SDO)

Solar Flare of 2011 produced a CME that did not travel toward the Earth (credit: NASA/SDO)

 

 

 

 

 

 

 

 

 

 

 

 

Solar flares affect all layers of the solar atmosphere (photospherechromosphere, and corona), when the plasma medium is heated to tens of millions of kelvins the electronsprotons, and heavier ions are accelerated to near the speed of light. They produce radiation across the electromagnetic spectrum at all wavelengths, from radio waves to gamma rays, although most of the energy is spread over frequencies outside the visual range and for this reason the majority of the flares are not visible to the naked eye and must be observed with special instruments. Flares occur in active regions around sunspots, where intense magnetic fields penetrate the photosphere to link the corona to the solar interior. Flares are powered by the sudden (timescales of minutes to tens of minutes) release of magnetic energy stored in the corona. The same energy releases may produce coronal mass ejections (CME), although the relation between CMEs and flares is still not well established.

related posts, below:

Solar Flare of Yesterday

Sun & Its CMEs (Coronal Mass Ejections)

Understanding Our Powerful Sun & Its CME (Coronal Mass Ejection)

Gathered and posted by sunisthefuture-Susan Sun Nunamaker

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4 May

Solar Flare of Yesterday

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Dear Friends, Visitors/Viewers/Readers,

(Please click on red links below)

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Our Solar-FIT For Sunshine State petition updates: 161 signatures. Please help to share this petition with others.

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I’d like to share with you a mid-level solar flare event that occurred on May 3, 2013 at 1:30 pm EDT. More details from NASA may be found, below:

Solar flares are powerful bursts of radiation. Harmful radiation from a flare cannot pass through Earth’s atmosphere to physically affect humans on the ground, however — when intense enough –they can

A burst of solar material leaps off the left side of the sun in what’s known as a prominence eruption. This image combines three images from NASA’s Solar Dynamics Observatory captured on May 3, 2013, at 1:45 pm EDT, just as an M-class solar flare from the same region was subsiding. The images include light from the 131-, 171- and 304-angstrom wavelengths. Credit: NASA/SDO/AIA

NASA’s Solar Dynamics Observatory captured this image of an M5.7-class flare on May 3, 2013, at 1:30 p.m. EDT. This image shows light in the 131-angstrom wavelength, a wavelength of light that can show material at the very hot temperatures of a solar flare and that is typically colorized in teal. Credit: NASA/SDO/AIA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

disturb the atmosphere in the layer where GPS and communications signals travel. This disrupts the radio signals for as long as the flare is ongoing, and the radio blackout for this flare has already subsided. Updates will be provided as they are available on the flare and whether there was an associated coronal mass ejection,

Magnificent CME (Coronal Mass Ejections) Erupts on the Sun of August 31, 2012, design available at www.cafepress.com/sunisthefuture

another solar phenomenon that can send solar particles into space and affect electronic systems in satellites and on Earth.

For answers to various space weather questions, please visit the Spaceweather Frequently Asked Questions page

Let’s learn more about our Sun. For better understanding about our Sun, its CMEs (Coronal Mass Ejections), and solar flare, please view the video clip produced by sunisthefuture Youtube Channel (collaborated with NASA/SDO), below:

 

~have a bright and sunny day~

Gathered and posted by sunisthefuture-Susan Sun Nunamaker

Any of your questions, comments, and suggestions are welcomed at sunisthefuture@gmail.com

Homepage: http://www.sunisthefuture.net

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