Google Play icon

NASA’s SDO Watches Giant Filament on the Sun

Share
Posted October 7, 2014

A snaking, extended filament of solar material currently lies on the front of the sun– some 1 million miles across from end to end. Filaments are clouds of solar material suspended above the sun by powerful magnetic forces. Though notoriously unstable, filaments can last for days or even weeks.

A dark snaking line in the upper right of the sun in this image on Sept. 30, 2014, shows a filament of solar material hovering above the sun's surface. NASA's SDO captured the image in extreme UV light. The Earth is shown to scale. Image Credit: NASA/SDO

A dark snaking line in the upper right of the sun in this image on Sept. 30, 2014, shows a filament of solar material hovering above the sun’s surface. NASA’s SDO captured the image in extreme UV light. The Earth is shown to scale. Image Credit: NASA/SDO

NASA’s Solar Dynamics Observatory, or SDO, which watches the sun 24 hours a day, has observed this gigantic filament for several days as it rotated around with the sun. If straightened out, the filament would reach almost across the whole sun, about 1 million miles or 100 times the size of Earth.

SDO captured images of the filament in numerous wavelengths, each of which helps highlight material of different temperatures on the sun. By looking at any solar feature in different wavelengths and temperatures, scientists can learn more about what causes such structures, as well as what catalyzes their occasional giant eruptions out into space.

A dark snaking line in the upper right of these images on Sept. 30, 2014, show a filament of solar material hovering above the sun's surface. NASA's SDO captured the images in extreme UV light – different colors represent different wavelengths of light and different temperatures of solar material. Image Credit: NASA/SDO

A dark snaking line in the upper right of these images on Sept. 30, 2014, show a filament of solar material hovering above the sun’s surface. NASA’s SDO captured the images in extreme UV light – different colors represent different wavelengths of light and different temperatures of solar material. Image Credit: NASA/SDO

Look at the images to see how the filament appears in different wavelengths. The brownish combination image was produced by blending two wavelengths of extreme UV light with a wavelength of 193 and 335 Angstroms. The red image shows the 304 Angstrom wavelength of extreme UV light.

NASA’s Solar Dynamics Observatory or SDO captured this video of the filament in 193 Angstrom wavelength. Video Credit: NASA/SDO/Steele Hill.

Source: NASA

Featured news from related categories:

Technology Org App
Google Play icon
84,754 science & technology articles

Most Popular Articles

  1. Real Artificial Gravity for SpaceX Starship (September 17, 2019)
  2. Top NASA Manager Says the 2024 Moon Landing by Astronauts might not Happen (September 19, 2019)
  3. How social media altered the good parenting ideal (September 4, 2019)
  4. What's the difference between offensive and defensive hand grenades? (September 26, 2019)
  5. Just How Feasible is a Warp Drive? (September 25, 2019)

Follow us

Facebook   Twitter   Pinterest   Tumblr   RSS   Newsletter via Email