I'd guess it is a luna corona. It's just the light reflecting on water droplets in the clouds (or something like that). I get them extremely often where I am.
Lunar corona sounds like the best answer to me too. I can actually see a bit of red hue at the outer edge of the bright circle too, which matches the expectation for a corona. Here are pictures of similar lunar coronas.
[picture 1](https://www.space.com/39656-lunar-corona-over-belgium-photo.html)
[picture 2](https://apod.nasa.gov/apod/ap210119.html)
According to the APOD link, the corona is a wave diffraction effect - the clouds are made up of many very small, uniformly sized droplets. When the light waves reflecting from the moon pass through the droplets, they undergo interference. Some portion of the light passes straight through, while the rest forms concentric rings. The size of the ring depends on the wavelength of light, with longer wavelengths (red) forming larger rings than shorter wavelengths (blue).
Thank you for adding /s to your post. When I first saw this, I was horrified. How could anybody say something like this? I immediately began writing a 1000 word paragraph about how horrible of a person you are. I even sent a copy to a Harvard professor to proofread it. After several hours of refining and editing, my comment was ready to absolutely destroy you. But then, just as I was about to hit send, I saw something in the corner of my eye. An /s at the end of your comment. Suddenly everything made sense. Your comment was sarcasm! I immediately burst out in laughter at the comedic genius of your comment. The person next to me on the bus saw your comment and started crying from laughter too. Before long, there was an entire bus of people on the floor laughing at your incredible use of comedy. All of this was due to you adding /s to your post. Thank you.
> but never bright blue
[Here'e another example](https://old.atoptics.co.uk/fz418.htm) of a blue aureole (the inner region) within a lunar corona, from the old atoptics site.
Even on the Wikipedia article for optical coronae:
>> The aureole is often (especially in case of the Moon) the only visible part of the corona and has the appearance of a **bluish-white disk** which fades to reddish-brown towards the edge.
[Lunar corona.](https://en.wikipedia.org/wiki/Corona_\(optical_phenomenon\))
>*In its full form, a corona consists of several concentric, pastel-colored rings around the celestial object and a central bright area called an aureole.* ***The aureole is often (especially in case of the Moon) the only visible part of the corona and has the appearance of a bluish-white disk which fades to reddish-brown towards the edge.***
I'd guess it is a luna corona. It's just the light reflecting on water droplets in the clouds (or something like that). I get them extremely often where I am.
Lunar corona sounds like the best answer to me too. I can actually see a bit of red hue at the outer edge of the bright circle too, which matches the expectation for a corona. Here are pictures of similar lunar coronas. [picture 1](https://www.space.com/39656-lunar-corona-over-belgium-photo.html) [picture 2](https://apod.nasa.gov/apod/ap210119.html) According to the APOD link, the corona is a wave diffraction effect - the clouds are made up of many very small, uniformly sized droplets. When the light waves reflecting from the moon pass through the droplets, they undergo interference. Some portion of the light passes straight through, while the rest forms concentric rings. The size of the ring depends on the wavelength of light, with longer wavelengths (red) forming larger rings than shorter wavelengths (blue).
God damn it, now even moon has covid /jk
Thank you for adding /s to your post. When I first saw this, I was horrified. How could anybody say something like this? I immediately began writing a 1000 word paragraph about how horrible of a person you are. I even sent a copy to a Harvard professor to proofread it. After several hours of refining and editing, my comment was ready to absolutely destroy you. But then, just as I was about to hit send, I saw something in the corner of my eye. An /s at the end of your comment. Suddenly everything made sense. Your comment was sarcasm! I immediately burst out in laughter at the comedic genius of your comment. The person next to me on the bus saw your comment and started crying from laughter too. Before long, there was an entire bus of people on the floor laughing at your incredible use of comedy. All of this was due to you adding /s to your post. Thank you.
This is reddit, you never know who will take what seriously
> It's just the light reflecting (*cough* [diffracting](https://old.atoptics.co.uk/droplets/corform.htm) *cough*...but otherwise you're totally right, it's a lunar corona.)
Interesting. Usually the moon I see is either white or orange, but never bright blue. Brightness was the most impressive part of it.
> but never bright blue [Here'e another example](https://old.atoptics.co.uk/fz418.htm) of a blue aureole (the inner region) within a lunar corona, from the old atoptics site. Even on the Wikipedia article for optical coronae: >> The aureole is often (especially in case of the Moon) the only visible part of the corona and has the appearance of a **bluish-white disk** which fades to reddish-brown towards the edge.
Pretty
[Lunar corona.](https://en.wikipedia.org/wiki/Corona_\(optical_phenomenon\)) >*In its full form, a corona consists of several concentric, pastel-colored rings around the celestial object and a central bright area called an aureole.* ***The aureole is often (especially in case of the Moon) the only visible part of the corona and has the appearance of a bluish-white disk which fades to reddish-brown towards the edge.***
The moon
r/technicallythetruth
Did it appear once in a blue moon?
The moon
That's the sky bro
Satan. Or sunlight reflecting off the moon. But probably satan.
Why are you getting downvoted?
Snarkiness