A 360 degree view of an X-class flare and a CME

Nov 08, 2011 By Karen C. Fox
The Solar Dynamics Observatory (SDO) captured this image of the solar flare from November 3, 2011. Credit: NASA/SDO

(PhysOrg.com) -- The sun sent out two different kinds of solar activity last night in different directions. One was an X 1.9 class flare that burst out from an active region on the sun, numbered AR1339, which just rounded over the left side of the sun into Earth's view. That flare began at 3:27 PM ET on November 3, 2011 and triggered some disruption to radio communications on Earth beginning about 45 minutes later. Scientists are continuing to watch this active region as it could well produce additional solar activity as it passes across the front of the sun.

The second eruption was a coronal mass ejection (CME), beginning about 8:45 PM ET that came from a different region, bursting off the backside of the sun. That CME is one of the brightest seen so far this solar cycle, and it is headed in the direction of Venus. NASA is able to track such in all directions, due to a heliophysics fleet of spacecraft watching the sun from all sides –in particular, the two Solar Terrestrial RElations Observatory (STEREO) spacecraft now sit on opposite sides of the sun providing an entire 360 degree view of solar activity.

What is a solar flare? What is a coronal mass ejection?

For answers to these and other space weather questions, please visit the Spaceweather Frequently Asked Questions page.

 

Explore further: Student to live in simulated space habitat

add to favorites email to friend print save as pdf

Related Stories

An X1.4 Solar Flare and a CME

Sep 23, 2011

(PhysOrg.com) -- A large coronal mass ejection (CME) shot off the West (right) side of the sun at 6:24 PM ET on September 21, 2011. The CME is moving away from Earth at about 900 miles per second.

Moderate Labor Day solar flare eruption

Sep 07, 2011

At 9:35 PM ET on September 5, 2011, the sun emitted an Earth-directed M5.3 class flare as measured by the GOES satellite. The flare erupted from a region of the sun that appears close to dead center from Earth's ...

Six coronal mass ejections in 24 hours

Sep 22, 2011

The sun let loose with at least six coronal mass ejections (CMEs) -- solar phenomena that can send solar particles into space and affect electronic systems in satellites -- from 7 PM ET on September 18, 2011 ...

Sun celebrates solstice with flare and CME

Jun 22, 2011

(PhysOrg.com) -- Late in the evening on June 20 the sun emitted a long lasting C7.7 small class flare that peaked around 11:25p.m. EDT. A C-class flare is a relatively small flare.

The Sun Loses its Spots

Jul 24, 2007

While sidewalks crackle in the summer heat, NASA scientists are keeping a close eye on the sun. It is almost spotless, a sign that the Sun may have reached solar minimum. Scientists are now watching for the ...

Beautiful red Aurora

Oct 27, 2011

(PhysOrg.com) -- A coronal mass ejection (CME) shot off the sun late in the evening of October 21 and hit Earth on October 24 at about 2 PM ET. The CME caused strong magnetic field fluctuations near Earth's ...

Recommended for you

Student to live in simulated space habitat

51 minutes ago

A Purdue University industrial engineering doctoral student is among six "crew members" spending the next eight months in a domed habitat on a volcanic landscape mimicking life on a Martian outpost.

The wake-up call that sent hearts racing

3 hours ago

"But as the minutes ticked by, the relaxed attitude of many of us began to dissolve into apprehension. Our levels of adrenaline and worry began to rise."

US-India to collaborate on Mars exploration

13 hours ago

The United States and India, fresh from sending their own respective spacecraft into Mars' orbit earlier this month, on Tuesday agreed to cooperate on future exploration of the Red Planet.

Swift mission observes mega flares from a mini star

13 hours ago

On April 23, NASA's Swift satellite detected the strongest, hottest, and longest-lasting sequence of stellar flares ever seen from a nearby red dwarf star. The initial blast from this record-setting series ...

Sandblasting winds shift Mars' landscape

17 hours ago

High winds are a near-daily force on the surface of Mars, carving out a landscape of shifting dunes and posing a challenge to exploration, scientists said Tuesday.

PanSTARRS K1, the comet that keeps going

20 hours ago

Thank you K1 PanSTARRS for hanging in there! Some comets crumble and fade away. Others linger a few months and move on. But after looping across the night sky for more than a year, this one is nowhere near ...

User comments : 1

Adjust slider to filter visible comments by rank

Display comments: newest first

omatumr
1 / 5 (2) Nov 09, 2011
Thanks for this report on observations (NOT models) of the violently unstable energy source that

a.) Powers the Sun,

b.) Causes Earth's climate to change always, and

c.) Sustains life in a state of continuous evolution.

What a refreshing reminder of the actual powerlessness of Al Gore, the UN, world leaders, and leaders of the scientific community to control Earth's climate!

With kind regards,
OliveR K. Manuel
http://myprofile....anuelo09