[SunkenCiv]

[Credit & Copyright: Daniel López (El Cielo de Canarias)]

[thackney]

John D. MacDonald ping

[Steely Tom]

This phenomenon was a cover story in Scientific American about fifty years ago.

It's an atmospheric refraction effect caused by temperature gradients, IIRC.

[spankalib]

Weird article, where they say cause unknown in the beginning, then give the cause at the end...oh well - neat pic!

& thackney,
Thanks a LOT for sending me on that search - heh.
Side note, did JDM frequently use lefty plots?
“Thanks to its pro-eco stance, A Flash of Green was financed by and telecast as an edition of PBS’ American Playhouse.”

[GraceG]

That was just me trying out my Green Latern Ring, nothing to see here...

[ThomasMore]

I’ve seen several of these over the last 15 years while vacationing on Captiva Island (west coast of Florida). There’s a restaurant on the Island named The Green Flash. If you like to watch sunsets like I do...these are a rare but exciting ending to a beautiful west coast Florida sunset.

[Cold Heart]

Sailors have always known about green flash. At sea a green flash can be observed in about 50% of sunsets.

[doorgunner69]

When we get to see them, the horizon needs to be completely cloud free. It often appears to be, but when the sun gets close, a los layer of cloud can be seen that ruins the chance for a flash.

Wife is better at spotting them than me, I tell her she is just more suggestive............