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reddog323 t1_jajehdj wrote

Reply to comment by pileodung in Northern lights outside Anchorage, AK last sunday night [OC] (3024x4032) by awesommazing

It depends how hard the particles are hitting the earth’s magnetic field, from what I understand.

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Norse_By_North_West t1_jal8km7 wrote

I'd like to add that the colours are kinda like neon lights, different molecules will give different colours. Upper atmosphere isn't uniform across the globe, so northern areas tend to get different colours than southern. That said, energetic particles come into the atmosphere further, so when that happens in the north, you can get all the colours

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