Round cloud

Circular cloud It's a fun game to play with any kid. What does that cloud look like? A hefalump? A duck? A cloud? A circle? I think the cloud in this photo was even closer to a perfect circle before I asked my wife to take this photo. It broke up a few minutes later. I'll have to ask the people at www.irishastronomy.org if they know of any atmospheric phenomena which cause perfectly circular clouds. Microcomets, atomic testing, alien craft, dumb luck? ;-) The sun was a few dozen degrees to the left, but this wasn't like any Sun dog, I've ever seen.

Update:(1/Aug/2006) Someone at Irish astronomy found an interesting explanation for some circular cloud patterns. Mount Etna apparently blows smoke rings. But Lambay and other nearby volcanos have been extinct for millions of years. So, I'll chalk this one up to "dumb luck." The same evening while skipping stones on the estuary, my daughter and I found a pebble shaped like an equalateral triangle. Aren't pebbles are supposed to be shaped like this? I'll just have to keep a camera handy for the day when I spot something else unusual in the sky, such as a circle accompanied by the symbol for pi. Until then...

cat /dev/random | strings | grep "For being ignorant to whom it goes I writ at random, very doubtfully"

Comments:

According to one Irish astronomical society member, this may be a lenticular cloud. here is an amazing example of a lenticular cloud. And here is another. Lenticular clouds usually form over mountains. The hills within a few miles of here are only a few hundred meters high, but there is a chance our circle is a small lenticular cloud.

Posted by bnitz on August 05, 2006 at 05:50 PM GMT+00:00 #

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