APOD: A Solar Prominence Erupts in STEREO


	APOD: A Solar Prominence Erupts in STEREO

clip-on-tie

10-20-2009 1:11 AM

166 views

tags:

astronomy, apod, very cool, the sun, mass injections, flares

clip-on-tie says:

The combined perspective of STEREO will help astronomers better understand the mechanisms for the creation and evolution of prominences, coronal mass ejections, and flares.

5 Comments |

Add a Comment

10-20-2009 1:28 AM

lollipop10

Hey, that is cool. Very nice pic!
And it looks like they're getting some action again.
Well. You know what i mean.

10-20-2009 2:22 AM

clip-on-tie

I know! Our sun looks angry! I'm glad we're millions of miles away!

10-20-2009 2:25 AM

merrie

The sun's activity has been very aberrant for the past two
years.

10-20-2009 6:37 PM

ljsdesign

10-21-2009 1:09 PM

lollipop10

Oh sorry Clip-on, i guess i forgot to tick the box. Yeah, i'm glad we're far away too, although it can still get us in other ways--by disrupting...what would you call it? telecommunications?

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<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://www.clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/34408b96-982b-4733-a9aa-85f6c2bcafe4/3EC9CECF-C1AF-490C-9C90-F21928CFDB33/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://apod.nasa.gov/apod/ap091020.html" href="http://apod.nasa.gov/apod/ap091020.html" style="font-size: 11px;">apod.nasa.gov</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://apod.nasa.gov/apod/ap091020.html"><H1> Astronomy Picture of the Day </H1></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://apod.nasa.gov/apod/ap091020.html">2009 October 20 
<A href="http://apod.nasa.gov/apod/image/0910/prominence_stereo_big.jpg">
<IMG alt="See Explanation.  Clicking on the picture will download
 the highest resolution version available." src="http://apod.nasa.gov/apod/image/0910/prominence_stereo.jpg" /></A></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://apod.nasa.gov/apod/ap091020.html">What does a solar prominence look like in three dimensions?
To help find out, NASA
<A href="http://apod.nasa.gov/apod/ap080316.html">launch</A>ed the
<A href="http://www.stereo.jhuapl.edu/">STEREO</A> satellites to keep a steady eye on the Sun from two different vantage points.
The <A href="http://www.nasa.gov/mission_pages/stereo/main/index.html">STEREO satellites</A> orbit the Sun nearly along Earth's orbit, but one (dubbed Ahead) currently leads the Earth, while the other (dubbed Behind) currently trails.</blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://apod.nasa.gov/apod/ap091020.html">Three weeks ago, a <A href="http://apod.nasa.gov/apod/ap081004.html">powerful prominence</A>
erupted and remained above the Sun for about 30 hours, allowing the
<A href="http://en.wikipedia.org/wiki/STEREO">STEREO satellites</A> to get numerous views of the prominence from different angles.
<A href="http://stereo.gsfc.nasa.gov/gallery/item.php?gid=1&id=106">Pictured above</A> is a high-resolution image of
<A href="http://www.nasa.gov/mission_pages/stereo/multimedia/filament_eruption.html">the event</A> from the STEREO Ahead satellite. </blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://apod.nasa.gov/apod/ap091020.html">A video of the
<A href="http://www.spaceweather.com/archive.php?view=1&day=08&month=10&year=2009">prominence erupting</A>
as seen from both spacecraft can be found
<A href="http://www.youtube.com/watch?v=_RjswBx6ysQ">here</A>.
</blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://apod.nasa.gov/apod/ap091020.html">The <A href="http://apod.nasa.gov/apod/ap080924.html">unusually quiet</A> nature of the Sun over the past two years has made large prominences like this relatively rare.
</blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://apod.nasa.gov/apod/ap091020.html"><B>Tomorrow's picture: </B><A href="http://apod.nasa.gov/apod/ap091021.html">martian devils</A></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://apod.nasa.gov/apod/ap091020.html"><B>Credit: </B>
<A href="http://www.nasa.gov/mission_pages/stereo/main/index.html">STEREO Project</A>,
<A href="http://www.nasa.gov/home/index.html">NASA</A></blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;">&nbsp;</td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/3EC9CECF-C1AF-490C-9C90-F21928CFDB33/blog/" title="blog or email this clip"><img src="http://content9.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>

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