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Posts tagged solar flare

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 Sunspot Loops in Ultraviolet  
 Explanation:  It was a quiet day on the Sun.  The above image shows, however, that even during off days the Sun’s surface is a busy place.    Shown in ultraviolet light, the relatively cool dark regions have temperatures of thousands of degrees Celsius.    Large sunspot group AR 9169 from the last solar cycle is visible as the bright area near the horizon.    The bright glowing gas flowing around the sunspots has a temperature of over one million degrees Celsius.    The reason for the high temperatures is unknown but thought to be related to the rapidly changing magnetic field loops that channel solar plasma.    Large sunspot group AR 9169 moved across the Sun during 2000 September and decayed in a few weeks.
(source: incomprehensibleuniverse)
Sunspot Loops in Ultraviolet

Explanation: It was a quiet day on the Sun. The above image shows, however, that even during off days the Sun’s surface is a busy place. Shown in ultraviolet light, the relatively cool dark regions have temperatures of thousands of degrees Celsius. Large sunspot group AR 9169 from the last solar cycle is visible as the bright area near the horizon. The bright glowing gas flowing around the sunspots has a temperature of over one million degrees Celsius. The reason for the high temperatures is unknown but thought to be related to the rapidly changing magnetic field loops that channel solar plasma. Large sunspot group AR 9169 moved across the Sun during 2000 September and decayed in a few weeks.

(source: incomprehensibleuniverse)

Filed under nasa sun star space universe solar system sunspots solar flare

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NASA Sees Fast-Moving Solar Flare

One of the fastest coronal mass ejections, or solar flares, in years was captured by the STEREO COR1 telescopes on Aug. 1, 2010. This movie combines COR1-Ahead images with Helium II 304 Angstrom images from the STEREO EUVI telescope. It shows the rapid explosion of material outward, followed by a slower eruption of a polar crown prominence from another part of the sun. This CME headed toward Earth at speeds above 620 miles per second

(source: incomprehensibleuniverse)

(Source: nasa.gov)

Filed under sun nasa stereo star cme coronal mass ejection solar flare earth

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SDO Catches a Double Play

The Solar Dynamics Observatory (SDO) caught the action when the Sun popped off two events at once on Jan. 28, 2011. A filament on the left side became unstable and erupted, while an M-1 flare (mid-sized) and a Coronal Mass Ejection on the right blasted into space. The movie, taken Jan. 26-28, 2011, shows several other flashes and bursts from the active region on the right as well.

(source: incomprehensibleuniverse)

(Source: nasa.gov)

Filed under sdo nasa sun solar flare cme coronal mass ejection star space astronomy solar system