
© Derek RyanA green flash is a phenomenon in which part of the sun can be observed suddenly and briefly changing colour.
It is a moment so fleeting that it is rarely caught by the human eye - let alone on camera.
But an amateur photographer has managed to record the elusive 'green flash' of the sun, an optical phenomenon that makes the sun appear to turn green as it rises above the horizon.
Derek Ryan, 50, spotted the unusual sight during an early morning walk at the beach at Tarves, Aberdeenshire, before work.

© Derek Ryan

© Derek RyanAn amateur photographer has managed to record the elusive 'green flash' of the sun, an optical phenomenon that makes the sun appear to turn green as it rises above the horizon.
A green flash is a phenomenon in which part of the sun can be observed suddenly and briefly changing colour.
Comment: Increasingly unstable weather patterns have been producing bizarre cloud patterns around the world recently. Factors which may contribute to these 'strange skies' are possible comet dust loading and changes in the layers of the atmosphere.