An Artificial Green Rim
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An Artificial Green Rim
The image captures a green segment on the top-left limb of the sun. Green rim is an optical phenomenon visible due to the refraction of sunlight through increasing density near horizon. The refraction of green light is stronger and thus a "green" sun can be visible higher than the "red" sun creating a green rim on the upper limb. Green rims do not last long and unlike greem flashes, they are not visible to unaided eyes.
In this image, however, such a refraction is caused by the heat and dust coming out from the turbine of the airliner engine when the sun is relatively higher in the sky, creating a green rim.
Gear: Nikon D5600, Sigma 150-600c
Exif: f/11, 1/500s, ISO 100, 600mm
Location: Kolkata, India
Date: 7th January 2021
In this image, however, such a refraction is caused by the heat and dust coming out from the turbine of the airliner engine when the sun is relatively higher in the sky, creating a green rim.
Gear: Nikon D5600, Sigma 150-600c
Exif: f/11, 1/500s, ISO 100, 600mm
Location: Kolkata, India
Date: 7th January 2021
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- PSX_20220107_123150.jpg (703.51 KiB) Viewed 486 times
Last edited by SoumyadeepMukherjee on Fri Jan 07, 2022 7:02 am, edited 1 time in total.
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Re: An Artificial Green Rim
Lovely shot! Please keep the file size of attached images down though thanks, they can be quite slow to load for users without high speed internet.
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Re: An Artificial Green Rim
Thanks Mark! Sorry, I forgot to resize the file. Updated with a smaller file.marktownley wrote: ↑Fri Jan 07, 2022 6:37 am Lovely shot! Please keep the file size of attached images down though thanks, they can be quite slow to load for users without high speed internet.
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Re: An Artificial Green Rim
Very nice, you had keen eyes to spot this, it took a while to see at full res
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Re: An Artificial Green Rim
An excellent capture.
Not so much "dust" though, rather than water-vapour from the engines, as well as almost certainly a change of air-pressure (causing air turbulence) from behind the moving body of the airframe itself, would be likely.
We are always advised that flying lighter aircraft close behind (within 5-miles typically) of a large commercial/military aircraft - is known as "Wake Turbulence" to be avoided.
Thanks for the interesting image
Terry
Not so much "dust" though, rather than water-vapour from the engines, as well as almost certainly a change of air-pressure (causing air turbulence) from behind the moving body of the airframe itself, would be likely.
We are always advised that flying lighter aircraft close behind (within 5-miles typically) of a large commercial/military aircraft - is known as "Wake Turbulence" to be avoided.
Thanks for the interesting image
Terry
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Re: An Artificial Green Rim
Thank you for the excellent information Terry!EGRAY_OBSERVATORY wrote: ↑Fri Jan 07, 2022 11:47 am An excellent capture.
Not so much "dust" though, rather than water-vapour from the engines, as well as almost certainly a change of air-pressure (causing air turbulence) from behind the moving body of the airframe itself, would be likely.
We are always advised that flying lighter aircraft close behind (within 5-miles typically) of a large commercial/military aircraft - is known as "Wake Turbulence" to be avoided.
Thanks for the interesting image
Terry
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Re: An Artificial Green Rim
Great transit image, Soumyadeep, showing an interesting effect.
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Re: An Artificial Green Rim
Excellent ! Thanks for sharing.
Christian Viladrich
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