During non-astronomic observations, the photographing of swamp  birds in Antenal (Novigrad), our colleagues from Višnjan managed to capture the last seconds of the sunset, where you can see a strange green ray.

    Sometimes, rarely, in the last seconds of a sunset, when the Sun disk is red, there can come to a phenomena, where the red color transforms into green. This optical phenomena in Earth's atmosphere is called "a green flash".

To see this phenomenon you need a clear atmosphere and as little humidity as possible, so this windy and cold weather is ideal to observe that last green ray of sunset.

How rare is this phenomenon? Well, it depends on Earth location from which you observe. From most places it is practically impossible to see it. Istria has a very favorable position and the green flash can be seen  ver ten times per year. Yet, one should always be ready on his toes, especially if we recall that last green flash observed from Višnjan Observatory that happened way back on March 27, 1994.

Source: forum.sci.hr

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LarsonMICHELLE29

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Saturday 12 February 2011, 09:54

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