Image taken from: http://www.coastalwebweaver.com/GreenFlash.html


Violet flashes are also rare.


Image taken from: http://www.webexhibits.org/causesofcolor/13D.html


Can occur with any setting celestial body, such as the moon

Image taken from: http://www.pixheaven.net/voir_us.php?taille=grand&nom=0507200018_green_flash

Can occur during a solar eclipse.

Image taken from: http://www.ast.cam.ac.uk/~ipswich/Observations/Eclipse-2002-12-04/sunset_2.jpg