APOD: Gone in 60 Seconds: A Green Flash Sunset (2023 Oct 25)

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APOD Robot
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APOD: Gone in 60 Seconds: A Green Flash Sunset (2023 Oct 25)

Post by APOD Robot » Wed Oct 25, 2023 4:05 am

Image Gone in 60 Seconds: A Green Flash Sunset

Explanation: In 60 seconds, this setting Sun will turn green. Actually, the top of the Sun already appears not only green, but wavey -- along with all of its edges. The Sun itself is unchanged -- both effects are caused by looking along hot and cold layers in Earth's atmosphere. The unusual color is known as a green flash and occurs because these atmospheric layers not only shift background images but disperse colors into slightly different directions, like a prism. The featured video was captured earlier this month off the coast of Hawaii, USA. After waiting those 60 seconds, at the video's end, the upper part of the Sun seems to hover alone in space, while turning not only green, but blue. Then suddenly, the Sun appears to shrink to nothing -- only to return tomorrow.

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Ann
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Re: APOD: Gone in 60 Seconds: A Green Flash Sunset (2023 Oct 25)

Post by Ann » Wed Oct 25, 2023 6:19 am

Oh, come on! This is a blue flash! (Even though it's a little bit green, too.)

A blue green flash APOD 25 October 2023.png
A blue and green flash APOD 25 October 2023.png

APOD 25 October 2023 blue flash.png

Oh, okay, all right - the caption actually told us so:
After waiting those 60 seconds, at the video's end, the upper part of the Sun seems to hover alone in space, while turning not only green, but blue.

Thank you, Tengyu Cai, for capturing this blue flash for us!

Ann
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hypermetabolic
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Re: APOD: Gone in 60 Seconds: A Green Flash Sunset (2023 Oct 25)

Post by hypermetabolic » Wed Oct 25, 2023 6:46 am

During my one year at Thule Greenland, 77 degrees north, during the first sunsets after summer the sun grazed the horizon horizontally before rising again. I could control the degree of sunset by walking up and down a north facing hillside, seeing all the stages pictured here, including violet! Thanks for publishing this video.

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Re: APOD: Gone in 60 Seconds: A Green Flash Sunset (2023 Oct 25)

Post by randyrls » Wed Oct 25, 2023 10:42 am

In my navy days we were at sea in the Caribbean, One of my tasks was to put out equipment at sunset. and remove it at sunrise.

I saw a green flash so intense the ENTIRE SKY TURNED GREEN! It was incredible but of course I was young and didn't know what I had seen.

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Re: APOD: Gone in 60 Seconds: A Green Flash Sunset (2023 Oct 25)

Post by orin stepanek » Wed Oct 25, 2023 10:02 pm

Other than photos of the Sun; I have never seen the Green Flash! :roll:
Orin

Smile today; tomorrow's another day!

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Re: APOD: Gone in 60 Seconds: A Green Flash Sunset (2023 Oct 25)

Post by johnnydeep » Thu Oct 26, 2023 3:14 pm

orin stepanek wrote: Wed Oct 25, 2023 10:02 pm Other than photos of the Sun; I have never seen the Green Flash! :roll:
I've seen the Green Lantern, but never the Green Flash. :ssmile:
--
"To B̬̻̋̚o̞̮̚̚l̘̲̀᷾d̫͓᷅ͩḷ̯᷁ͮȳ͙᷊͠ Go......Beyond The F͇̤i̙̖e̤̟l̡͓d͈̹s̙͚ We Know."{ʲₒʰₙNYᵈₑᵉₚ}

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Ann
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Re: APOD: Gone in 60 Seconds: A Green Flash Sunset (2023 Oct 25)

Post by Ann » Thu Oct 26, 2023 4:22 pm

johnnydeep wrote: Thu Oct 26, 2023 3:14 pm
orin stepanek wrote: Wed Oct 25, 2023 10:02 pm Other than photos of the Sun; I have never seen the Green Flash! :roll:
I've seen the Green Lantern, but never the Green Flash. :ssmile:

No? Here he is!


Ann
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Re: APOD: Gone in 60 Seconds: A Green Flash Sunset (2023 Oct 25)

Post by johnnydeep » Thu Oct 26, 2023 6:01 pm

Ann wrote: Thu Oct 26, 2023 4:22 pm
johnnydeep wrote: Thu Oct 26, 2023 3:14 pm
orin stepanek wrote: Wed Oct 25, 2023 10:02 pm Other than photos of the Sun; I have never seen the Green Flash! :roll:
I've seen the Green Lantern, but never the Green Flash. :ssmile:

No? Here he is!


Ann
Ah, I was only talking about "canon". Yeah, that's the ticket. But, while we're on the subject, here's a more comic-y envisioning:

--
"To B̬̻̋̚o̞̮̚̚l̘̲̀᷾d̫͓᷅ͩḷ̯᷁ͮȳ͙᷊͠ Go......Beyond The F͇̤i̙̖e̤̟l̡͓d͈̹s̙͚ We Know."{ʲₒʰₙNYᵈₑᵉₚ}

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Re: APOD: Gone in 60 Seconds: A Green Flash Sunset (2023 Oct 25)

Post by orin stepanek » Thu Oct 26, 2023 7:10 pm

johnnydeep wrote: Thu Oct 26, 2023 3:14 pm
orin stepanek wrote: Wed Oct 25, 2023 10:02 pm Other than photos of the Sun; I have never seen the Green Flash! :roll:
I've seen the Green Lantern, but never the Green Flash. :ssmile:
Ya! I also have seen the Green Arrow! :lol2:
Orin

Smile today; tomorrow's another day!

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johnnydeep
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Re: APOD: Gone in 60 Seconds: A Green Flash Sunset (2023 Oct 25)

Post by johnnydeep » Thu Oct 26, 2023 7:40 pm

orin stepanek wrote: Thu Oct 26, 2023 7:10 pm
johnnydeep wrote: Thu Oct 26, 2023 3:14 pm
orin stepanek wrote: Wed Oct 25, 2023 10:02 pm Other than photos of the Sun; I have never seen the Green Flash! :roll:
I've seen the Green Lantern, but never the Green Flash. :ssmile:
Ya! I also have seen the Green Arrow! :lol2:
Well, I'll be darned, there IS a Green Arrow! He looks like a jacked Robin Hood. I was never into comics AT ALL, truth be told.


And then there's Minecraft's Green Menace - I've never played Minecraft either.

https://minecraft.fandom.com/wiki/Minec ... een_Menace
--
"To B̬̻̋̚o̞̮̚̚l̘̲̀᷾d̫͓᷅ͩḷ̯᷁ͮȳ͙᷊͠ Go......Beyond The F͇̤i̙̖e̤̟l̡͓d͈̹s̙͚ We Know."{ʲₒʰₙNYᵈₑᵉₚ}

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Re: APOD: Gone in 60 Seconds: A Green Flash Sunset (2023 Oct 25)

Post by Chris Peterson » Thu Oct 26, 2023 7:53 pm

orin stepanek wrote: Thu Oct 26, 2023 7:10 pm
johnnydeep wrote: Thu Oct 26, 2023 3:14 pm
orin stepanek wrote: Wed Oct 25, 2023 10:02 pm Other than photos of the Sun; I have never seen the Green Flash! :roll:
I've seen the Green Lantern, but never the Green Flash. :ssmile:
Ya! I also have seen the Green Arrow! :lol2:
Wasn't he having an argument with the Green Hornet?
Chris

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johnnydeep
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Re: APOD: Gone in 60 Seconds: A Green Flash Sunset (2023 Oct 25)

Post by johnnydeep » Thu Oct 26, 2023 8:13 pm

Chris Peterson wrote: Thu Oct 26, 2023 7:53 pm
orin stepanek wrote: Thu Oct 26, 2023 7:10 pm
johnnydeep wrote: Thu Oct 26, 2023 3:14 pm

I've seen the Green Lantern, but never the Green Flash. :ssmile:
Ya! I also have seen the Green Arrow! :lol2:
Wasn't he having an argument with the Green Hornet?
Dang, I plumb forgot about him. And we mustn't neglect the Green Giant (Jolly or otherwise). It seems like green is the preferred color of all things imaginary, and life-extraterrestrial (so far, also imaginary).
--
"To B̬̻̋̚o̞̮̚̚l̘̲̀᷾d̫͓᷅ͩḷ̯᷁ͮȳ͙᷊͠ Go......Beyond The F͇̤i̙̖e̤̟l̡͓d͈̹s̙͚ We Know."{ʲₒʰₙNYᵈₑᵉₚ}

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Re: APOD: Gone in 60 Seconds: A Green Flash Sunset (2023 Oct 25)

Post by Chris Peterson » Thu Oct 26, 2023 8:19 pm

johnnydeep wrote: Thu Oct 26, 2023 8:13 pm
Chris Peterson wrote: Thu Oct 26, 2023 7:53 pm
orin stepanek wrote: Thu Oct 26, 2023 7:10 pm
Ya! I also have seen the Green Arrow! :lol2:
Wasn't he having an argument with the Green Hornet?
Dang, I plumb forgot about him. And we mustn't neglect the Green Giant (Jolly or otherwise). It seems like green is the preferred color of all things imaginary, and life-extraterrestrial (so far, also imaginary).
And Soylent. Never forget Soylent.
Chris

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johnnydeep
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Re: APOD: Gone in 60 Seconds: A Green Flash Sunset (2023 Oct 25)

Post by johnnydeep » Thu Oct 26, 2023 8:55 pm

Chris Peterson wrote: Thu Oct 26, 2023 8:19 pm
johnnydeep wrote: Thu Oct 26, 2023 8:13 pm
Chris Peterson wrote: Thu Oct 26, 2023 7:53 pm

Wasn't he having an argument with the Green Hornet?
Dang, I plumb forgot about him. And we mustn't neglect the Green Giant (Jolly or otherwise). It seems like green is the preferred color of all things imaginary, and life-extraterrestrial (so far, also imaginary).
And Soylent. Never forget Soylent.
--
"To B̬̻̋̚o̞̮̚̚l̘̲̀᷾d̫͓᷅ͩḷ̯᷁ͮȳ͙᷊͠ Go......Beyond The F͇̤i̙̖e̤̟l̡͓d͈̹s̙͚ We Know."{ʲₒʰₙNYᵈₑᵉₚ}

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bystander
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Re: APOD: Gone in 60 Seconds: A Green Flash Sunset (2023 Oct 25)

Post by bystander » Fri Oct 27, 2023 3:15 am

Chris Peterson wrote: Thu Oct 26, 2023 8:19 pm And Soylent. Never forget Soylent.
It's just people.
Know the quiet place within your heart and touch the rainbow of possibility; be
alive to the gentle breeze of communication, and please stop being such a jerk.
— Garrison Keillor

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orin stepanek
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Re: APOD: Gone in 60 Seconds: A Green Flash Sunset (2023 Oct 25)

Post by orin stepanek » Fri Oct 27, 2023 1:50 pm

johnnydeep wrote: Thu Oct 26, 2023 7:40 pm
orin stepanek wrote: Thu Oct 26, 2023 7:10 pm
johnnydeep wrote: Thu Oct 26, 2023 3:14 pm

I've seen the Green Lantern, but never the Green Flash. :ssmile:
Ya! I also have seen the Green Arrow! :lol2:
Well, I'll be darned, there IS a Green Arrow! He looks like a jacked Robin Hood. I was never into comics AT ALL, truth be told.


And then there's Minecraft's Green Menace - I've never played Minecraft either.

https://minecraft.fandom.com/wiki/Minec ... een_Menace
I wait for Green lantern and Green Arrow when I'm stopped in traffic!
Orin

Smile today; tomorrow's another day!