Why is it that some nights when it's a clear night out the sky is completely black and some clear nights its a dark-light blue almost if something is lighting it up somehow? Note, I'm seeing this in the country so please don't respond with "city lights" or anything of that nature.
Factual answers welcomed as well as websites. If not informative please dont answer with crap for points. thank you
2007-03-24 17:54:19 · 4 answers · asked by Anonymous in Food & Drink ➔ Beer, Wine & Spirits
I used to live in the country so I know what you're talking about. Although I can't pinpoint this down to exact science I can give you some educated guesses.
The moon I'm sure has a lot to do with it. A fuller moon, especially with even some clouds in the sky will cast more light and cause for a lighter sky. The dark clear skies are usually during a new moon or when there is only a sliver present. I wouldn't be surprised if moisture content in the air might catch some light (not clouds, just humidity) and cause for some light reflection but I don't know how significant that would be.
In the winter we got VERY light skies, even when it was clear, simply from moonlight reflecting off snow. You could go out and walk around without a flashlight and see fine. It was beautiful!
Next time you notice this compare it to the lunar stages on the calendar (most give these) and see if you notice it correlating with full moons or half moons. If it's dark and clear see if it corresponds with quarter or new moons. I think the bulk of the explanation would lie there.
Hope that helps.
2007-03-24 18:05:58 · answer #1 · answered by Nijojo 4 · 0⤊ 0⤋
(Why did you ask this in Beer, Wine, and Spirits?)
It's because of clouds and dust high in the atmosphere. Depending on the weather conditions and other things, there can be a lot of it, or very little. They can reflect the light from cities far away. They can also refract twilight from below the horizon, or moonlight before the moon rises or after it sets.
After Mt. Pinatubo erupted in the early 1990s, the volcanic dust in the upper atmosphere caused a weird reddish glow at night that was seen all over the world.
2007-03-24 18:00:03 · answer #2 · answered by The Tridentine Avenger 3 · 0⤊ 0⤋
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2016-07-11 00:00:19 · answer #3 · answered by ? 3 · 0⤊ 0⤋
Why is this question under Food & Bev ?????
2007-03-24 18:54:58 · answer #4 · answered by chewtoy789 2 · 0⤊ 0⤋