There are famous Noctilucent Clouds, the most high-altitude clouds in the Earth's atmosphere: they flow some 80 km. above surface and consist of ice crystals. Geophysicists know crystallization centers are often meteor dust particles. I used Kodak Pro Gold 400 film with lens f=37mm, A=1/2.8 with exposure time of 10 secs. Image was taken through June 1997 from one of my Moscow apartments' window. Copyright (C) 1998 by Grigorio V. Moshkin. P.S. This is size-to-size 150 dpi 24-bit RGB with colors and levels changed and some filtering passed. For SOURCE 300 dpi contact me. ******************************************************************************* * Grigorio V. Moshkin, school #57 - 1991 | Project to be launch : * * co-founder of Russian magazine "Zvezdotchet" | _Under_Planetarium_Sky_ (R) * * Sternberg Astronomical Institute, Moscow State University * * Image processing: [astronomy], [color publishing] * * UNIX/Linux in C++ programming & computer music compose problems * * Al Bano & Romina Power / Enya / J.M. Jarre | Al Bano & Romina Power * * Amateur Pyrotechnics | "E va la mia eta` * * E-mail: grigorio@sai.msu.su | Che se ne va..." * * Tel. : (095) 369-76-06, 939-22-45, 250-09-85 | * ******************************************************************************* [Team] Microsoft (R) Windows (R) MustDie (TM) Forever (TM)