maggiekb — 2013-12-09T09:09:15-05:00 — #1
spunkytws — 2013-12-09T09:41:16-05:00 — #2
The sun dog is beautiful, but so are the intricate ice patterns on the window. Cold weather may not always be fun but it can produce some amazing effects.
squidgyb — 2013-12-09T09:51:10-05:00 — #3
It took me a short while to figure out that those patterns were on the window, and not smoke/steam from the industrial complex being caught by the light of the sun...
But yes, patterns in ice (and in nature as a whole) fascinate me. Try to find a beach with lots of shale/broken up slate - it seems to re-arrange itself into the most fascinating of patterns all on it's own.
tekna2007 — 2013-12-09T09:54:35-05:00 — #4
cbrewer314 — 2013-12-09T10:39:02-05:00 — #5
endotoxin — 2013-12-09T10:47:03-05:00 — #6
Last Friday had freezing fog in Albuquerque. My wife took a wonderful photo of the sun rising over the football stadium outside of her call center, with one of the best examples of a Sun Dog I've ever seen here in NM: http://imgur.com/pfdD0nM
glenblank — 2013-12-09T12:40:59-05:00 — #7
More than you ever wanted to know about the the optics of ice halos (and other atmospheric optics, too - rainbows and glories and crepuscular rays, oh my!) including simulator software that lets you specify conditions, sun angle, etc., and then calculates the resulting halo(es):
samsam — 2013-12-09T12:45:04-05:00 — #8
Beautiful fractals of frost in the window. Looks strikingly like the Mandelbrot Set. It took me a moment to realize that that wasn't what the post was about.
jamesb — 2013-12-09T13:47:11-05:00 — #9
Interesting photos and links. I was in Minneapolis last week for work, and saw those. I was so cold and sleepy, I didn't give it much thought.
ohbejoyful — 2013-12-09T13:50:02-05:00 — #10
I think it's an image of both - sun pillar rising up out of the setting sun, and a sun dog seen to the right of it.
ohbejoyful — 2013-12-09T13:51:05-05:00 — #11
Whether you get a halo or a sun dog depends on which way the ice crystals are oriented in relation to you.
Does this mean that if I were in a plane directly over the sundog I would see a circle?
drabkikker — 2013-12-09T15:39:00-05:00 — #12
Yes, it's a sun pillar. No sundogs to be seen in this picture.
drabkikker — 2013-12-09T15:50:55-05:00 — #13
I suppose you're referring to that bright streak to the right of the sun? I'm afraid that's just a wisp of cloud (perhaps a contrail) being lit up. A proper sundog would appear much further to the right/left. As cbrewer314 already pointed out, what we're seeing here is not a sundog, but a sun pillar.
To all those who would like to learn more about these phenomena and their proper nomenclature, I can cordially recommend paying a visit to the link glenblank posted. There is also a subreddit dedicated to the subject at www.reddit.com/r/atoptics.
gyrofrog — 2013-12-09T16:04:25-05:00 — #14
Same here. I thought that was a Fractal Mr. Punch near the lower right.
teapot — 2013-12-09T21:50:27-05:00 — #15
I'll let myself out.
maggiekb — 2013-12-14T09:05:29-05:00 — #16
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