NASA displays “solar quilt” collage of Sun taken at different wavelengths

by | Jan 23, 2013 | Seradata News | 0 comments

NASA has released a collage image of the Sun looking very much like “a quilt made by your Auntie Joanie” which has been created from solar images taken at different wavelengths by the Solar Dynamics Observatory. The images taken at different wavelengths are used to analyse the Sun and its atmosphere.  For example, while the Sun’s yellow light (wavelength of 5800 Angstroms) which humans can see, emanates from material of 5700 degrees C on the surface of the sun, extreme ultraviolet light of wavelength 94 Angstroms, comes from atoms of 6,300,000 degrees C  and is a good wavelength for looking at solar flares, which can reach such high temperatures.

 

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