Image: SDO views active region loops

Image: SDO views active region loops
Credit: NASA/SDO

An active region viewed in profile put on quite a show of erupting plasma and looping arches on Sept. 22-23, 2015.

The loops, seen above the sun's surface on the right, are light emissions from charged particles spinning along that dance through the sun's atmosphere.

The region, which appeared as a sunspot group in visible light, was observed here in two wavelengths of over a period of about 40 hours.

Though invisible to our eyes, light emissions in the extreme ultraviolet wavelength of 171 Angstroms are typically colorized in gold, while emissions in 304 angstroms are colorized in red.


Explore further

Video: Complex mass of solar plasma

Provided by NASA
Citation: Image: SDO views active region loops (2015, September 30) retrieved 27 June 2019 from https://phys.org/news/2015-09-image-sdo-views-region-loops.html
This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.
21 shares

Feedback to editors

User comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more