What Is The Green Flash?

Tools

By By Steve Pool

SEATTLE - Jack from Seattle says he observed a green flash on the sun as it was setting along the Oregon Coast. The phenomenon is quite rare, but spectacular to see. It's usually noticed just as the top tip of the sun at sunset or sunrise.

It works on a similar level as to why the sun looks red as it sets, where the shorter wavelength colors of light - the blues, greens and yellows, become scattered in the atmosphere while the longer red and orange light is able to survive, giving the sun a reddish tinge.

The theory with the green flash is that if the atmospheric conditions are just right, you can get a brief period where the green light bends in such a way where you can see it. Check the Ask Steve Web site for links to more information.

For More Information:

hyperphysics.phy-astr.gsu.edu

mintaka.sdsu.edu.

Your Photos

YouNews Sun halo Sun halo
Sun halo near Orondo, WA over Memorial Day Weekend. Photo by Stephanie Campbell.
YouNews Almost Old Enough!! Almost Old Enough!!
About a week ago I posted 3 pictures of 4 newly hatched Dark-Eyed Oregon Junco chicks. These are the same little ones, 8 days old now. They should fledge by June 1. It's amazing how quickly they grow. A week ago there was tons of room in the nest.
YouNews 70th Annual Memorial Day Service 70th Annual Memorial Day Service
Each year since 1946, the Nisei Veterans Committee has held a Memorial Day Service to honor all who have died in service of their country, especially members of the 442nd Regimental Combat Team, the most highly decorated unit for size and length of service in the history of the US Military, and the Military Intelligence Service, a group credited by General MacArthur's staff with shortening the War in the Pacific by two years