Circumzenithal Arc’s
Noctilucent Cloud
Noctilucent clouds are phenomena seen during the summer twilight (June and July for the northern hemisphere and December and January for the southern). It is caused by sunlight striking stratus clouds at a height of around 82km.
Honor Wheeler’s Images
“I was holidaying in Kelling and had the very good luck of seeing Noctilucent Clouds on the last night I was there.
Below are some images I managed to snap. I must admit that the clouds were so extensive that I didn’t think they were NLC’s! I was not prepared either, the only lens I had on me was a 70 – 300 lens which didn’t do the scale of the clouds justice. “
Honor
Simon Dawes’ Images
Martin Crow’s Images
Images by Jim Burchell
Multiple Phenomena
If you are observant you will occasionally be rewarded with multiple phenomena in the sky as these images by members show.
Martin Crow’s Images
Honor Wheeler’s Images
Atmospheric Optic Picture of the Day
Our very own Honor Wheeler makes Optics Picture of the Day (20/03/2010) at the world renowned site for extra special atmospheric optics. “I live in Kent, in the Southeast of England and so don’t usually expect complexity in a halo display as the conditions are never quit right. Today, however, I was amazed and excited to photograph sundogs, a partial 22deg halo, an upper tangent arc, a Parry arc, circumzenithal arc and a partial supralateral arc. I’ve photographed all but the supralateral arc separately before but never all together! These photos were taken between 15.34 and 15.41UT but overall the display lasted for approx 20 minutes with the circumzenithal arc lasting the longest.”
If you have HaloSim installed, run the simulation yourself after downloading the simulation file kent.sim
Slideshow
Other Images
Sun | Comets | Mercury | Venus | Atmospheric Optics | Meteors | Auroa and NLC | Moon | Minor Planets | Mars | Jupiter | Saturn | Uranus | Neptune | Messier | Caldwell | All Deep Sky | Conjunctions | Transits | Solar Eclipse | Lunar Eclipse | Wide Field |ISS & Space Junk | Exo-Planets
All images are copyright. Permission must be sought to from the image owner to the use of any of these images.