Noctilucent clouds Lars Melin Image taken: Jul. 10, 2011 Location: Sollentuna, Sweden Details: The brightest and nicest noctilucent clouds I have seen. They covered 50% of the hemisphere, all the way up to zenith. Photos taken around 00:30 local summer time. Nikon P73 set in automatic mode. No tripod. ©2013, SpaceWeather.com -- This site is penned daily by Dr. Tony Phillips.