This thread got me thinking about how the amount of moonlight (reference a full moon at latitudes < 40 degrees from the equator) compares to what we call “moonlight mode” (typically less than a lumen). Perhaps a different thread?
stupid thread got me doing a 6 hr study on black body and quantum physics.
Thanks now i'm more confused .
reading is hard
Last night I recorded another full moon:
Apparently the one full moon is not the other. This time it was warmer, 3400K. The luxvalue was lower than the first recording in september last year. It is attractive to speculate that more haze in the atmosphere (the sky looked very bright though) caused more scattering (affects blue the most) and warming up the CCT. Or the moon was lower than last time (it was), so the light travels a longer distance through the atmosphere, again more scattering.
Whatever the reason, the CCT of moonlight seems pretty variable, but the CRI is invariably high. Let’s wait for a very high moon next time and see what the CCT does then.
This was very interesting, I had no idea this could be done. Thank you.
Funny how no one mentioned the positive DUV. I’m surprised you guys can stand to go outside without it being rosy negative DUV 
That’s why I wear Lee minus green filters in my glasses :sunglasses:
Nice read Djozz, looking forward to the next.
MAybe they are using a new clone moon emitter 
T
The Chhinaaa man must have caused it. LOL
I just saw that as an explanation for why this month’s full moon looks more pink — it rises only to the lowest angle above the horizon.
I’ve seen some wonderful outdoor time exposures of Yosemite waterfalls made with moonlight. They make “moonbows” too dim for the eye that cameras can capture.
https://www.google.com/search?client=firefox-b-1-d&channel=tus&q=moonbow+yosemite&oq=&aqs=
There’s no need to mention it.
Everyone already knows the moon is made of green cheese.
So now it is half a year later because very high moons only occur in winter. It is two and a half weeks after midwinter, with full moon within half an hour of its highest point, less than 20 degrees from straight above. Is the tint significantly cooler than the low moon in summer?
It was to be expected: just like the sun, the moon tint is coolest when it is high above the horizon, lower duv too . The sky was clear but not completely haze-free so perhaps an even bit higher CCT could have been obtained.
No PWM. Who would’ve thought! All we need to do is put a minus green filter over it to get it below BBL.
Thanks for the test! This kind of random information is very interesting to me.
Curious what the M/P ratio is of moonlight. Looks pretty high.
Neat stuff, djozz. 
This is most fascinating. I wish my budget would extend to a spectrometer like that.
It you look closely you will notice that there is a hare living on the moon, although in your original post he is turned upside down and it is harder to see him. But you will also see he is busy with a pestle and mortar compounding the Elixir of Immortality.
Perhaps your differing results correspond to different seasons when he is experimenting with different ingredients, and these in turn alter the spectrum of light reflected from them?
with Mars so close to the Moon right now,
what would work to make the best of that?
I don’t see how Mars would alter the spectrum of light reflected off the Moon, but that does make me think of another interesting possibility, what about measuring the spectra of a lunar eclipse, also known as a “blood” Moon, or a red Moon?
I was very surprised I had never seen anything like this before. Especially the red part of the spectrum caught my attention.
It is two days after midsummer, and I caught the full moon just as it rose above the rooftops opposite my balcony, must be less than 10 degrees above the horizon.
It is the lowest CCT that I measured sofar: 3170K, and the highest duv: +0.0068.
CCT = 3170K
duv = +0.0068
CRI = 96.5
R9 = 94.8
Today’s moon through my binoculars (not a great pic) :
Tonight is supposed to be the last Super-moon for a while. Catch it if you can.