File:MoretonWaveAnimation200612.gif

Summary

File information
Description	A moreton wave is a kind of shock wave generated by solar flares on the Sun. Images acquired by Optical Solar Patrol Network (OSPAN) in H-alpha (656.3 nm).
Source	https://nso.edu/press-release/telescope-spots-solar-tsunami/; images assembled into animated GIF by Huygens 25.
Date	2006-12-06
Author	NSO/AURA/NSF and USAF Research Laboratory
Permission (Reusing this file)	Per an NSO representative: Our terms of use are posted at http://www.nso.edu/press/conditions_of_use.html Bottom line: Use the pictures so long as you give us a credit line. [...] So long as the use is educational (which Wikipedia is; I use it a lot) and we get a credit line, use the images. Updated link to image policy: https://nso.edu/about/image-use-policy/

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Fair use for Moreton wave

The image linked here is claimed to be used under fair use as:

it is a scientifically significant photo of a solar phenomenon;
it is of much lower resolution than the original (copies made from it will be of very inferior quality)
the photo is only being used for informational purposes.
Its inclusion in the article adds significantly to the article because it shows the phenomenon depicted in this article and how it has a significant impact on the Sun to the general public. Huygens 25 12:45, 17 December 2006 (UTC)