Crepuscular raysAs the sun nears dawn over the Atlantic Ocean near St Ormond by the Sea in Florida,

Crepuscular raysAs the sun nears dawn over the Atlantic Ocean near St Ormond by the Sea in Florida, an optical effect known as crepuscular rays becomes visible as the glowing orb shines through the clouds. The originate in high rising cumulus behind the layer of altocumulus onto which the rays are projected as on a screen. The divergence from the point in the sky where the sun is rising is due to perspective effects, much like railway tracks or furrows in fields appear to converge at a distance. They usually occur around dawn or dusk, and the name comes from the Latin for twilight. LozImage credit: David Wade via EPODhttp://www.atoptics.co.uk/atoptics/ray1.htm -- source link

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