So now to my science questions. I could look up on the web but I like having a discussion on here. Below is what i know or from a general interest BBC article from yesterday.
Sun is having a storm ‘currently’ and ejecting charged particles that are interacting with the gases in the atmosphere which make them glow. Nitrogen is greenish, oxygen is blue-purple which is why they are the colours we see in the photos, as that’s what the atmosphere is mainly.
I described above ‘sunbeams in a dusty room’ and they’re visible in many of the (amazing) photos. What’s causing this then? Is this ‘particles travelling in straight lines’ or is that us actually seeing the earth’s magnetic field?
Films i’ve seen of the aurora ‘dancing’ – is that fluctuations in the magnetic field in real time, and are those films sped up? Stuff was obviously evolving last night but I wouldn’t have called it dancing…do you just need to be further north (or south) ‘cos the earth’s magnetic field is stronger at the poles?
And last for now – I said ‘currently’ but how long do these particles take to get to us? I mean it’s current for us, but they could have left the sun minutes, hours, days, years…. ago. I have a recollection at the speed of light, the sun’s light takes 9 mins approx to get to us so what we’re seeing happened 9 mins ago (let’s not do temporal relativism in universal space today) but when was this storm? We say it’s currently having a solar storm but is it? Do observations of solar flares and mass gas ejections* match up with the lights?
* not in the sense of a lentil based diet at a 70’s music festival