PIA14093: Lengthy Coronal Hole
 Target Name:  Sol (our sun)
 Mission:  SDO
 Instrument:  Atmosphere Imaging Assembly
 Product Size:  2100 x 2100 pixels (w x h)
 Produced By:  SDO
 Full-Res TIFF:  PIA14093.tif (7.362 MB)
 Full-Res JPEG:  PIA14093.jpg (273.3 kB)

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Original Caption Released with Image:

An elongated coronal hole rotated across the face of the sun this past week so that it is now streaming solar wind towards Earth (Jan. 2-5, 2017). Coronal holes are areas of open magnetic field from which solar wind particles stream into space. In this wavelength of extreme ultraviolet light it appears as a dark area near the center and lower portion of the sun. The particle stream will likely generate aurora here on Earth. Check spaceweather.com for updates on auroral activity.

Movies
PIA14093_Long_Cor_Hole193_big.mp4
PIA14093_Long_Cor_Hole193_sm.mp4

SDO is managed by NASA's Goddard Space Flight Center, Greenbelt, Maryland, for NASA's Science Mission Directorate, Washington. Its Atmosphere Imaging Assembly was built by the Lockheed Martin Solar Astrophysics Laboratory (LMSAL), Palo Alto, California.

Image Credit:
NASA/GSFC/Solar Dynamics Observatory

Image Addition Date:
2017-01-09