Atmospheric
Optics

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   Snowflakes

   Birefringence in pond ice

   Rime

   Window Frost

   Sirius

   Crossed polarisers and frost

   Fern Frost

   Snowflake Symmetry

   Ice Colours

   Norwegian Nacreous Clouds

    Reflection Rainbow, Stockholm

    Vädersolstavlan, ‘Sundog painting’ Stockholm, Sweden

    Crepuscular Rays, Dominican Republic

    Two for One

    Lamp Fogbows

    Lunar halos

    Not the Earth from Space

    Ribbed Halo

    Lunar Parry & Lowitz Arcs

    Two Arcs

    Sundogs - Nice, France

    Algal Optics

    CZA Moments - The Movie

    Distorted Sunset

    Circumhorizon & Infralateral Arcs

    Pilot's Glory over Antarctica

    Halley Halos

    Moving Pillar

    Ice Colours

    Kitchen Optics

    Cloud Colours

    Sunset Mirage

    Coronae & Airy Disks

    Fogbow Bridge - Alaska

    Rainbow Glints

    Pennsylvania Hole Punches

    Sunset Virga

    'Bursting' Mammatus

    Virginia halos

    Reflection Glory & Broken in the sky

    Shrinking head

    Rays of Ra, Egypt

    Secondary fogbow, Estonia

    Very rare sub 120 parhelion

    Optics Sunday - Australia

    Australian CZA

    Not so inferior or humble mirage

    Monster Lenticular

    Arctic Fata Morgana

    Red Skies

    Rare Lowitz Arc, Kiev

    Rare Halos at Zermatt

    Norwegian Halos

    Kievan Lights

    Complete Rainbow Making

    No Dogs on Beach (except Sundogs)

    Labor Weekend Moonrise Mirage

    California Smoke Rays

    Whale Bow

    Flattened Moon

    Pillars & Columns

    Sunset Mirage

    Parry Arc

    Road Bow

    Winter Halos

    Evening Rainbows

    Waterborne Dewbow

    Glory in the sky! Very rare reflection glory

    Montana Contrail Shadow

    Lenticular Clouds & Iridescence

    Halos in cirrus fibres

    Last of the summer halo?

    Cloud/fogbow, Ireland

    Earh Shadow & Twilight Arch, Stockholm

    Circumzenithal Arc, Sussex

    Glory & Transparancy

    Inner & Outer Pollen Corona, Sweden

    Venetian Pyramids

    Lake Ladoga & Fogbow

    Floridian Pyramids

    Miraged icebergs, Greenland

    Sarychev Skies

    NLCs Continue! - Hungary

    NLCs Continue! - Finland

    Unusual Lamp Fogbow

    Raindrops, Rainbows & Descartes

    Contrail Shadows

    Great Wall Bow

    Europe's rare halo

    Two of the rarest halos

    Cornwall Green Flash

    Cosmic Pumpkin

    Chromatic Flashes

    Clouds, Linings & Volcano

    Boomerang Optics

    Pillars & Crystals

    All-Sky NLCs

    Reflection Caustics