“Dragon Tail” – Huge filament eruption – January 31, 2013
A large filament stretching hundreds of thousands of kilometers erupted on Thursday, January 31, 2013. The eruption lasted about 4 hours and was located in the northeast quadrant of the Sun.
The following SDO video shows a variety of views of the break-up of this structure.
Filaments are anchored to the Sun’s surface in the photosphere, and extend outwards into the Sun’s hot outer atmosphere, called the corona.
A filament forms over timescales of about a day, and stable filaments may persist in the corona for several months, looping hundreds of thousands of miles into space.
Some of the plasma was released into space but not all could escape the gravitational pull of the Sun. It’s not surprising that plasma should fall back to the Sun. After all, the Sun’s gravity is powerful.
Filament vs Prominence
“Filaments are formed in magnetic loops that hold relatively cool, dense gas suspended above the surface of the Sun,” explains David Hathaway, a solar physicist at the NASA Marshall Space Flight Center. “When you look down on top of them they appear dark because the gas inside is cool compared to the hot photosphere below. But when we see a filament in profile against the dark sky it looks like a giant glowing loop — these are called prominences and they can be spectacular.”
Featured image and video credit: NASA SDO
If you value what we do here, create your ad-free account and support our journalism.
Your support makes a difference
Dear valued reader,
We hope that our website has been a valuable resource for you.
The reality is that it takes a lot of time, effort, and resources to maintain and grow this website. We rely on the support of readers like you to keep providing high-quality content.
If you have found our website to be helpful, please consider making a contribution to help us continue to bring you the information you need. Your support means the world to us and helps us to keep doing what we love.
Support us by choosing your support level – Silver, Gold or Platinum. Other support options include Patreon pledges and sending us a one-off payment using PayPal.
Thank you for your consideration. Your support is greatly appreciated.
Sincerely,
Teo Blašković
Commenting rules and guidelines
We value the thoughts and opinions of our readers and welcome healthy discussions on our website. In order to maintain a respectful and positive community, we ask that all commenters follow these rules:
We reserve the right to remove any comments that violate these rules. By commenting on our website, you agree to abide by these guidelines. Thank you for helping to create a positive and welcoming environment for all.