Very rare cloud
Taken by Filipp Romanov on April 5, 2019 @
Yuzhno-Morskoy, Nakhodka, Russia
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Camera Used: Canon Canon EOS 60D
Exposure Time: 1/200
Aperture: f/8.0
ISO: 200
Date Taken: 2019:04:05 19:11:22
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Details:
Hello! My name is Filipp Romanov, I am a 21 years old. I am amateur astronomer from Russia, the discoverer of 55 variable stars and 10 planetary nebulae candidates https://filipp-romanov.livejournal.com/27664.html , the author of my scientific paper about the discovery and research of one of these variable stars (publication http://var.astro.cz/oejv/oejv.php?oejv=190 on September 05 , 2018, in a scientific journal).
On April 5, 2019, around 09:10 UTC, in the Primorsky Krai, near the city Nakhodka (in Yuzhno-Morskoy, on the coast of the Sea of Japan, coordinates: 42.857560, 132.688080 ), I observed an unusual and rare cloud that I have never been seen before: Lenticular cloud with Kelvin–Helmholtz instability wave.
This lenticular cloud was illuminated by the setting sun, so its shape was well defined and visible against the sunset sky. I was very impressed that I saw Kelvin – Helmholtz instability wave in this cloud: it lasted for for only a few minutes and I had little time to react - I photographed this instability in this rare cloud.
I was able to observe how this cloud was in the same place for at least one hour - with a strong wind (I’ll clarify that there was a strong wind over this territory on the indicated date). In fact of my visual observation of this cloud: I saw a rare cloud in the sky in the direction of the nearest mountain range - Lozovyy Khrebet (Chandalaz) - I was at a distance of about 30 kilometers from it (from the place where I stood at that time with my camera).
This cloud looked very beautiful on the sunset sky in the evening: spectacular and majestic!
1 photo - taken at 09:11 UTC.
2 photo - taken at 09:08 UTC.
3 photo - taken at 09:14 UTC.
4 photo - I am and this cloud, taken at 09:14 UTC.
Photographer's website:
No URL provided.
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