Setting Sun with Green Flash
Taken by Peter Lowenstein on November 27, 2021 @
Mutare, Zimbabwe
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Details:
Very occasionally, if conditions are right, it is possible to observe a transient green flash of light close to the Sun when it rises or sets on a distant horizon. The accompanying looped animation, compiled from 100 frames extracted from a video recorded at 18.12 on Saturday 27 November, shows this happening as the upper portion of the Sun’s disk is distorted by atmospheric refraction as it descends behind a mountain to the south-west of Mutare. Favourable conditions include a distant horizon (preferably over water) and very clear atmospheric conditions (with no haze). This has now been observed three times (on 29 Nov 2019, 12 Jan 2018, and 27 Nov 2017) at about the same time in the late afternoon but only above the same distant mountain to the south-west of my viewpoint in Murambi East (three of the images in the last montage). Hundreds of other sunsets have been observed along the horizon between the summer and winter solstice points since 2012 but no others have displayed a green flash. Camera: Tripod-mounted Panasonic Lumix DMC-ZS40 in sunset mode with x60 optical zoom magnification.
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