A rare phenomenon in Morneg: luminous waves of ariglow light up the sky + Makrem Larnaout + Optolong L-eNhance, UV/IR Cut

source:Optolongpopularity:387Release Time:2023-06-29

A rare phenomenon in Morneg: luminous waves of ariglow light up the sky

Image Credit: Makrem Larnaout


Sounds like an incredible experience! You've been lucky enough to witness a fascinating natural phenomenon called airglow, which occurs in the thermosphere, between 100 and 300 km above sea level. Airglow is caused by a chemical reaction where the sun's rays excite molecules in the upper atmosphere, resulting in the emission of a faint light, known as chemiluminescence.
The colours seen in the sky were the result of this phenomenon. The colour of the airglow can vary depending on the altitude at which the chemical reaction takes place. The different layers of atmospheric pressure, which change with altitude, can also give airglow clouds an undulating or wave-like appearance.
Interestingly, airglow is a fairly rare and extraordinary phenomenon to observe. It is a manifestation of the complexity and beauty of our atmosphere.



Sigma 28mm F1.4 DG HSM (Art)
Canon EOS Ra
Sky-Watcher Star Adventurer
Optolong L-eNhance 2" · Optolong UV/IR cut 2"
Adobe Photoshop · Pleiades Astrophoto PixInsight

Dates: June 18, 2023
Optolong L-eNhance 2": 9×120″(18′)
Optolong UV/IR cut 2": 15×60″(15′)
Integration: 33′
Avg. Moon age: 0.30 days
Avg. Moon phase: 0.10%
Data source: Traveller

Image Credit : Makrem Larnaout

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