Noctilucent Clouds
Noctilucent Clouds or night shining clouds are mesospheric clouds composed of ice crystals and fine particulates beyond the troposphere in which we live. Current thinking indicates they may be from meteoric dust and man made pollutants as their frequency and extent have increased since the beginning of the industrial age. They are visible mostly in the months of June through August for an hour or so after sunset.
Imaged from Wetaskiwin Alberta at 52 degrees 59 minutes north, 113 degrees 29 minutes west.
Noctilucent Clouds 2009
Visual Observations:
June 11, 2009 0530 UT streaky bands azimuth 290 degrees altitude 30 degrees.
Sarychev Volcanic dust sunset July 4th, 2009, 2235, 2240 MDT.
June 10, 2009 0501 UT Azimuth 340 degrees Altitude 50 degree,iso 100 1/2 sec f/3.5.
June 10, 2009 0504 UT Azimuth 350 degrees Altitude 50 degrees,iso 100 1/2 sec f/3.5.
Noctilucent Clouds 2008
July 19th 2008, 0456 UT iso 200 f/3.5, 1 second, looking north.
July 19th 2008, 0504 UT iso 200 f/3.5, 1 second, looking north.
July 19th 2008, 0502 UT iso 200 f/3.5, 1 second, looking northwest.
July 19th 2008, 0506 UT iso 200 f/3.5, 1 second, looking northwest.
July 19th 2008, 0513 UT iso 200 f/3.5, 1 second, looking northwest.
July 8th 2008, 1125 PM MDT iso 200 f/3.5, 3 seconds, looking northwest.
July 8th 2008, 1127 PM MDT iso 200 f/3.5, 3 seconds, looking north.
July 8th 2008, 1134 PM MDT iso 200 f/3.5, 4 seconds, looking north.
July 8th 2008, 1137 PM MDT iso 200 f/3.5, 4 seconds, looking northwest.
July 8th 2008, 1141 PM MDT iso 200 f/3.5, 3 seconds, looking north.
July 8th 2008, 1145 PM MDT iso 200 f/3.5, 3 seconds, looking northwest.
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