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 Hurricane odile Hurricane odile
Hi, I'm a resident of issaquah wa, here with my husband in cabo San Lucas. We are 34 and 38 years old came down to vacation for the first time since the birth of our first child (3 years old). We landed in cabo on Tuesday the 16th of September.
YouNews Waiting their turn Waiting their turn
A Washington State Ferry waits its turn to dock at the Lopez Island Ferry Terminal as the sun rises over Mount Baker in the background.
YouNews Reflection Reflection
During my time in Seattle, WA, I've had the opportunity to take all sorts of interesting pictures. There is water everywhere here, and in this shot; it provides a perfect mirror to the road above.