Mostrando entradas con la etiqueta NASA's Solar Dynamics Observatory. Mostrar todas las entradas
Mostrando entradas con la etiqueta NASA's Solar Dynamics Observatory. Mostrar todas las entradas

domingo, 4 de enero de 2015

NASA : Solar Dynamics Observatory Welcomes the New Year.- NASA's Solar Dynamics Observatory da la bienvenida al Nuevo Año 2015.....

Hola amigos:  A VUELO DE UN QUINDE EL BLOG., hemos recibido de la Agencia Espacial NASA, la impresionante fotografía captada a El Sol, por : the Atmospheric Imaging Assembly (AIA) instrument on NASA's Solar Dynamics Observatory, quienes detallan que no hubo fuegos artificiales de El Sol dándonos la bienvenida del Año Nuevo, solo  hubo unas pocas llamaradas de Clase C durante el último día del año 2014. En cambio El Sol comienza el año 2015 con un enorme agujero en la Corona cerca del Polo Sur. Esta imagen captada el 1° de Enero del 2015, muestra el agujero en la Corona, como una región oscura  en el Polo Sur.
Agujeros coronales son regiones de la corona donde el campo magnético llega al espacio en lugar de un bucle de vuelta a la superficie. Las partículas que se mueven a lo largo de estos campos magnéticos pueden salir de El Sol en lugar de ser atrapado cerca de la superficie. Esas partículas atrapadas pueden calentarse y resplandor, que nos da las hermosas imágenes de AFP. En las partes de la corona donde las partículas dejan El Sol, el brillo es mucho más tenue y el agujero coronal se ve oscuro..................
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Solar Dynamics Observatory Welcomes the New Year
There were no fireworks on the sun to welcome in the New Year and only a few C-class flares during the last day of 2014. Instead, the sun starts 2015 with an enormous coronal hole near the south pole. This image, captured on Jan. 1, 2015 by the Atmospheric Imaging Assembly (AIA) instrument on NASA's Solar Dynamics Observatory, shows the coronal hole as a dark region in the south.
Coronal holes are regions of the corona where the magnetic field reaches out into space rather than looping back down onto the surface. Particles moving along those magnetic fields can leave the sun rather than being trapped near the surface. Those trapped particles can heat up and glow, giving us the lovely AIA images. In the parts of the corona where the particles leave the sun, the glow is much dimmer and the coronal hole looks dark.
Coronal holes were first seen in images taken by astronauts on board NASA’s Skylab space station in 1973 and 1974. They can be seen for a long time, although the exact shape changes all the time. The polar coronal hole can remain visible for five years or longer. Each time a coronal hole rotates by the Earth we can measure the particles flowing out of the hole as a high-speed stream, another source of space weather.
Charged particles in the Earth’s radiation belts are accelerated when the high-speed stream runs into the Earth’s magnetosphere. The acceleration of particles in the magnetosphere is studied by NASA’s Van Allen Probes mission.
As Solar Cycle 24 fades, the number of flares each day will get smaller, but the coronal holes provide another source of space weather that needs to be understood and predicted.
Image Credit: NASA/SDO
Caption: Dean Pesnell
NASA
Guillermo Gonzalo Sánchez Achutegui
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lunes, 20 de octubre de 2014

NASA : Extreme Ultraviolet Image of a Significant Solar Flare

Hola amigos: A VUELO DE UN QUINDE EL BLOG., hemos recibido de la Agencia Espacial NASA una espectacular vista captada por :  NASA's Solar Dynamics Observatory y nos dice:  "El sol emite una llamarada solar significativa el 19 de octubre de 2014, alcanzando un máximo a las 1:01 am EDT. Observatorio de Dinámica Solar de la NASA, que siempre está observando el sol, captó esta imagen del evento en la longitud de onda ultravioleta extrema de 131 Angstroms - una longitud de onda que se puede ver el intenso calor de un brote y que es típicamente coloreada en verde azulado.......

Extreme Ultraviolet Image of a Significant Solar Flare
The sun emitted a significant solar flare on Oct. 19, 2014, peaking at 1:01 a.m. EDT. NASA's Solar Dynamics Observatory, which is always observing the sun, captured this image of the event in extreme ultraviolet wavelength of 131 Angstroms – a wavelength that can see the intense heat of a flare and that is typically colorized in teal.
This flare is classified as an X1.1-class flare. X-class denotes the most intense flares, while the number provides more information about its strength. An X2 flare is twice as intense as an X1, and an X3 is three times as intense.
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 disturb the atmosphere in the layer where GPS and communications signals travel.
Image Credit: NASA/Solar Dynamics Observatory
NASA
Guillermo Gonzalo Sánchez Achutegui
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sábado, 26 de octubre de 2013

NASA : Solar Filament Eruption Creates 'Canyon of Fire'


Images of the sun captured on Sept. 29-30, 2013, by NASA's Solar Dynamics Observatory, or SDO, which constantly observes the sun in a variety of wavelengths.
Solar Filament Eruption Creates 'Canyon of Fire'
A magnetic filament of solar material erupted on the sun in late September, breaking the quiet conditions in a spectacular fashion. The 200,000 mile long filament ripped through the sun's atmosphere, the corona, leaving behind what looks like a canyon of fire. The glowing canyon traces the channel where magnetic fields held the filament aloft before the explosion. In reality, the sun is not made of fire, but of something called plasma: particles so hot that their electrons have boiled off, creating a charged gas that is interwoven with magnetic fields.
These images were captured on Sept. 29-30, 2013, by NASA's Solar Dynamics Observatory, or SDO, which constantly observes the sun in a variety of wavelengths.
Different wavelengths help capture different aspect of events in the corona. The red images shown in the movie help highlight plasma at temperatures of 90,000° F and are good for observing filaments as they form and erupt. The yellow images, showing temperatures at 1,000,000° F, are useful for observing material coursing along the sun's magnetic field lines, seen in the movie as an arcade of loops across the area of the eruption. The browner images at the beginning of the movie show material at temperatures of 1,800,000° F, and it is here where the canyon of fire imagery is most obvious. By comparing this with the other colors, one sees that the two swirling ribbons moving farther away from each other are, in fact, the footprints of the giant magnetic field loops, which are growing and expanding as the filament pulls them upward.
Image Credit: NASA/Solar Dynamics Observatory

Guillermo Gonzalo Sánchez Achutegui
ayabaca@gmail.com
ayabaca@hotmail.com
ayabaca@yahoo.com
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sábado, 30 de marzo de 2013

NASA - Graceful Eruption


 A solar prominence began to bow out and the broke apart in a graceful, floating style in a little less than four hours (Mar. 16, 2013).

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NASA
Guillermo Gonzalo Sánchez Achutegui
ayabaca@gmail.com
ayabaca@hotmail.com
ayabaca@yahoo.com
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domingo, 10 de marzo de 2013

NASA - Quiet Interlude in Solar Max


 Image of the Earth-facing surface of the Sun on February 28, 2013, as observed by the Helioseismic and Magnetic Imager (HMI) on NASA's Solar Dynamics Observatory. Credit: NASA/SDO

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 NASA
Guillermo Gonzalo Sánchez Achutegui
ayabaca@gmail.com
ayabaca@hotmail.com
ayabaca@yahoo.com
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