PDA

View Full Version : noctilucent clouds



phaishazamkhan
2007-Jul-06, 03:15 AM
Are these visible in North America? Most of the pics are from Europe and lately I've been trying to spot one or two of these. Does it matter that I'm at 38.83 latitude?

cran
2007-Jul-06, 03:20 AM
possibly ...

and probably ...

NEOWatcher
2007-Jul-06, 11:58 AM
Well, I never saw them, so they don't exist. :shifty:
Actually that curiosity prompted me to look it up on wiki (http://en.wikipedia.org/wiki/Noctilucent_clouds), where they say it appears between 50 and 70 degrees latitude.
Being that the U.S. is primarily below the 49th parallel, I would say they don't.
In Europe, Prague is approximately at the 50 degree mark (directionally, not temperature). That leaves a good portion of Europe in the visible range.

Or, they always become UFO's here? :whistle: