[APML] Images of Noctilucent Clouds

["Arne Danielsen" <arnedani@online.no>]

Dear all,



I'm more or less shooting digital for all my astrophotos these days, but
finally I have some on-topic images to share - assuming pictures of
high-level clouds can be considered as astrophoto. J



During summer the skies are much too bright to do any regular nighttime
astrophoto from the high latitudes of Norway. There is however another
interesting phenomenon that can be witnessed each summer from our part of
the world. I'm thinking of Noctilucent Clouds (NLC).  These are high
atmosphere cloud formations thought to be composed of small ice-coated
particles which form at very high altitudes - around 82 km above sea level.
Those interested can read more about the phenomenon at:
http://www.nlcnet.co.uk/



I've seen displays of NLC's 6 or 7 nights this summer, whereas 3-4 displays
have been very bright and impressive. On the night between July 14.-15. we
had one of those impressive displays. The clouds covered all of the Northern
sky - from 270 degrees West to 120 degrees South-East and from the horizon
all the way through zenith.  None of my digital configuration can capture
such a large field so I had to dig out my good old Olympus OM-1N and 16mm
f/3,5 semi-fishey lens. You can see the results through this link:

http://astrophile.net/astronomy/astrophoto/nlc/nlc.htm



Best regards,
Arne
--
Arne Danielsen
Langhussenter 15, 1405 Langhus, Norway
mailto:arne@astrophile.net
http://astrophile.net/
N59°45'14"  E10°50'38" A115m


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