<p>One restriction we can anticipate is that the polar nights would be unlikely to produce this phenomenon. Essentially, you're looking at a phosphorescence process; sunlight must break up gas molecules whose recombination then produces the upper-atmosphere glow. Polar nights, with a prolonged period of no sunlight input, are thus not set up to become bright.</p>

CC BY-SA 4.0
2024-09-16T12:21:29.980Z
2024-09-16T12:21:29.980Z
Oscar Lanzi
<p>Recently I learned of <a href="https://www.science.org/content/article/bright-night-glowing-sky-mystery-solved" rel="nofollow noreferrer">bright nights</a>, and I wonder what the restrictions here are regarding latitude or climate. Can this phenomenon happen anywhere in the world, or are there restrictions?</p>

<atmosphere>
Is there any restriction with regard to latitude or climate as to where a "bright night" can happen?
kutschkem
# Is there any restriction with regard to latitude or climate as to where a "bright night" can happen?

(Asked by: username_0 on 2024-09-10)

Recently I learned of [bright nights](https://www.science.org/content/article/bright-night-glowing-sky-mystery-solved), and I wonder what the restrictions here are regarding latitude or climate. Can this phenomenon happen anywhere in the world, or are there restrictions?

**Tags:** atmosphere


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## 1 answers

### Answer by username_1 on 2024-09-16. Score: 0

One restriction we can anticipate is that the polar nights would be unlikely to produce this phenomenon. Essentially, you're looking at a phosphorescence process; sunlight must break up gas molecules whose recombination then produces the upper-atmosphere glow. Polar nights, with a prolonged period of no sunlight input, are thus not set up to become bright.


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