HAUPTMENÜ
- Ice Crystals
- Halos
- Halos
- 22° Halo
- Parhelia
- Parhelia
- Parhelia in Historical Representations
- Parhelia on November 10th, 2003
- Parhelia on October 18th, 2003
- Parhelion on March 16th, 2004
- Parhelion on April 27th, 2004
- Parhelia on April 28th, 2004
- Parhelia on May 28th, 2005
- Parhelia above Lake Constance
- Parhelion on October 27th, 2005
- Parhelion on February 10th, 2008
- Parhelion in Altocumulus on March 12th, 2008
- Parhelion on July 11th, 2008
- Parhelia on June 11th, 2010
- Circumzenithal Arcs
- Tangent Arcs
- Circumscribed Halo
- Light Pillars
- Light Pillars
- Lower Sun Pillar on January 10th, 2003
- Upper Sun Pillar on May 15th, 2003
- Upper Sun Pillar on August 27th, 2005
- Upper and Lower Sun Pillar on February 11th, 2006
- Upper Sun Pillar on October 25th, 2006
- Upper and Lower Sun Pillar on February 10th, 2010
- Light Pillar and crepuscular rays on March 6th, 2010
- Subsun
- Parhelic Circle
- 120° Parhelia
- Supralateral Arcs
- Infralateral Arcs
- Parry Arc
- Circumhorizontal Arcs
- Pyramidal Halos
- Complex Displays
- Ice Crystals
- Snowflakes
- Hoar Frost
- Colours in Ice
- Halos
- Drops and Droplets
- Rainbows
- Rainbows
- Descartes and the Rainbow
- Red Rainbow
- Rainbow on July 30th, 2005
- Rainbow on August 19th, 2007
- Rainbow on April 19th, 2008
- Rainbow on April 30th, 2008
- Rainbow on June 14th, 2008
- Rainbow on June 27th, 2008
- Rainbow on July 12th, 2008
- Red Rainbow on August 10th, 2008
- Reflection Rainbows
- Irregular Rainbows
- Dew Bows
- Fogbows
- Coronae and Aureoles
- Coronae and Aureoles
- Lunar Corona on February 7th, 2004
- Corona on August 6th, 2005
- Coronae on April 6th, 2007
- Aureoles and Crepuscular Rays on February 23rd, 2008
- Corona on August 28th, 2008
- Corona on April 19th, 2009
- Aureoles on April 20th and 21st
- Aureoles on April 24th, 2009
- Aureoles on April 26th, 2010
- Iridescence
- Glories
- Spectre of the Brocken
- Heiligenschein
- Contrails
- Steaming Chimneys
- Rainbows
- Pollen, Dust and Smoke
- Pollen
- Pollen
- Hazel Pollen on March 14th, 2010
- Birch Pollen on April 13th, 2010
- Pollen Coronae
- Pollen Coronae on May 10th, 2006
- Pollen Coronae on May 11th, 2006
- Pollen Coronae on May 12th, 2008
- Pollen Coronae on May 12th, 2008/2
- Sunset Pollen Corona
- Hazel Corona and Quételet Rings I
- Hazel Corona and Quételet Rings II
- Pollen Corona on May 23rd, 2010
- Dust
- Blue Smoke
- Zodiacal Light
- Pollen
- Light and Shadows
- Light and Water
- The Colour of the Sky
- Dusk and Dawn
- Dusk and Dawn
- Sunset on January 4th, 2005
- Sunset on February 27th, 2005
- Sunset on October 25th, 2006
- Sunset on August 10th, 2008
- Sunset Colours on January 11th, 2009
- Sunset on August 12th, 2009
- Sunset on March 10th, 2010
- Cumulonimbus on July 28th, 2008
- Sunrise on June 18th, 2010
- Sunset on July 11th, 2010
- Twilight Wedge and Venus Belt
- Blue Mountains
- Purple Light
- Zero Order Glow
- Dusk and Dawn
- At the Edge of Space
- Noctilucent Clouds
- Noctilucent Clouds
- Noctilucent Clouds on June 19th, 2005
- Noctilucent Clouds on July 14th, 2006
- Noctilucent Clouds on June 15th, 2007
- Noctilucent Clouds or not?
- Noctilucent Clouds on June 30th, 2008
- Noctilucent Clouds on July 4th, 2008
- Noctilucent Clouds on June 16th, 2009
- Noctilucent Clouds on June 21st, 2009
- Noctilucent Clouds on July 14th, 2009
- Noctilucent Clouds on July 15th, 2009
- Noctilucent Clouds on July 5th, 2010
- Noctilucent Clouds on July 5th, 2010
- Noctilucent Clouds on July 9th, 2010
- Noctilucent Clouds on July 18th, 2010
- Aurorae
- Noctilucent Clouds
- Polarization and Birefringence
- Mirages
- Bioluminescence
- Atmospheric Optics in Everyday Life
- Iridescence on Glass and Metal
- Iridescence of Varnish and Resin
- Fluids and Interference
- Interference in Fabrics
- Birefringence
- Road Paint Bows
- Road Paint Bows
- Colour Effects on Road Signs
- Holograms
- Artificial Glitter Paths
- Window Reflections
- Quételet Rings
- Diffraction Patterns in a Spider's Web
- Diffraction on Metal
- Refraction in Glass and Synthetic Resin
- Diffraction Rings on Faceted Eyes
- Interference in Minerals
- Astrophotography
- Sun
- Moon
- Moon on May 30th, 2001
- Lunar Eclipse on November 8th/9th, 2003
- Moon on March 13th, 2003
- Moon on May 6th, 2006
- Lunar Eclipse on March 3rd/4th, 2007
- Moon on May 23rd, 2007
- Moon on October 22nd, 2007
- Lunar Crescent on February 8th, 2008
- Lunar Crescent on February 9th, 2008
- Moon on February 15th, 2008
- Moon on June 10th, 2008
- Partial Lunar Eclipse on August 16th, 2008
- Moon on November 8th, 2008
- Planets
- Comets
- Deep Sky and Constellations
- Sirius Gallery
- Night Sky in December 2006
- Crab Nebula on November 29th, 2008
- NGC 884 on November 29th, 2008
- Horsehead Nebula on December 28th, 2008
- M 33 on December 28th, 2008
- M 42 on December 28th, 2008
- M 65 and M 66 on March 20th, 2009
- NGC 4565 on March 21st, 2009
- M 81 on March 21st, 2009
- Dumbbell Nebula on May 23rd, 2009
- M 13 on May 23rd, 2009
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