Wednesday, 20 June 2012

A Green Flash at Sunset


From Trevor Potts:

I took some shots at the lighthouse last night.  The first is of Ardnamurchan Point Lighthouse in silhouette, with the sun about to touch the horizon....
....followed by the sun dipping below the horizon.

On my Antarctic cruises we often talk about a green flash at sunset but I had never seen it and though it was a myth. Well it is not.

I saw this amazing flash last night as the sun dipped below the horizon.  It looked to me like a very vivid blue flash.  Click with camera, and it was gone. The light conditions last night were pretty amazing with the islands silhouetted sharp and clear, but unfortunately my photography did not do it justice.

M M Dworetsky of the University of London Department of Physics and Astronomy agrees that the phenomenon exists - see website http://www.star.ucl.ac.uk/~mmd/greenfla.html.

2 comments:

  1. I have also see seen this more than once but during the winter months when the sun was setting just off the end of Mull when looking from our house in Pier Road.As Trevor says its just a quick flash.

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  2. This is the famous ¨Green Flash¨. Well done for catching the extremely rare, 3 second opportunity.

    Living in Ardnamurchan for 11 years, we saw it only twice. A certain Mr Swift (through whose window and whisky glass bottom we saw our last one) has an excellent larger picture which shows the green colour quite distinctly. Mr Dworetsky is a more reliable source than Mr Laphroig but they both say the same thing.

    Rob T

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