Happy Holidays Dean (and all), Great discussion on the green flash. I watch a lot of sunsets from my deck, on a hill about 1000 ft above the desert floor. Near the winter solstice, when the Sun is setting around azimuth 240 degrees, I see it set over the White Tank Mountains west of Phoenix and about 75 miles distant. I've never seen a "classic" green flash, but on at least 2 occasions have seen a distinctly "greenish-gold" (if you can imagine that color) tinge to the upper edge of the Sun as it disappears behind the mountains. I always figured it was due to normal atmospheric dispersion. There were no mirages that I could notice on those occasions, though I have seen some nice superior mirages (inverted peaks) over those mountains. Now I'm wondering if airflow over those mountains also played a part, given the typical west winds from the coast. Dan Heim On 12/30/2012 9:50 PM, Ketelsen, Dean A - (ketelsen) wrote: > Hi All- > > Not much traffic over the holidays, so thought I'd stir it up a bit! I know > lots of you have opinions on the "Green Flash" effect on the setting sun. I > took offense at some terminology that Les Cowley made on Optics Pic-o-the > day, so I wrote to him some time ago, and present our exchange on the blog. > Check it out if you like! > > www.theketelsens.blogspot.com > > -Dean-- > See message header for info on list archives or unsubscribing, and please > send personal replies to the author, not the list. > > > > -- See message header for info on list archives or unsubscribing, and please send personal replies to the author, not the list.