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Old 21-03-2022, 06:45 AM
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Broad spectrum on horizon before sunrise?

any info on this image would be appreciated. Taken from north west NSW before sunrise. Please comment. credit, Jarred Giles
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Old 21-03-2022, 09:00 AM

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If real, it's a shot well before sunrise, helped by the absence of cloud in picking up the full extent of the Rayleigh scattering and refraction of light as the sunlight light traces a much longer path through the atmosphere than during the day. There is also a phenomenon some refer to as green-flash that occurs briefly in the last moments of sunset or early moments of sunrise which might somehow factor in as a type of refraction.

Additionally the image may have had some amped-up in-camera or post-processing (increased saturation, contrast, sharpening etc..) as suggested by the white "ringing" edge on the silhouette of the horizon landscape.

Where did you see or source the image?


Last edited by JA; 21-03-2022 at 09:37 AM.
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