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Most of Europe is glowing pink under the aurora

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Re: Most of Europe is glowing pink under the aurora

#251

Post by madaxe_again »

notfish wrote: post #134
alpha_squared wrote: post #70

This also appears to be happening in the southern hemisphere as well and growing brighter. My layman understanding is auroras are the result of coronal mass ejections interacting with Earth's atmosphere, but I don't recall these incidents being large enough to be so visible in the northern and southern hemispheres simultaneously.

This is the biggest storm since 2003! We hit a G5 on the SWPC geomagnetic storm reading, and my team had to power down components on our satellites to keep them safe!

While I was happily posting photos of the ionic chaos over your network throughout. Nice one.

Re: Most of Europe is glowing pink under the aurora

#252

Post by cinntaile »

joshvm wrote: post #194
niutech wrote: post #118

Earlier quoted context omitted.

Can you share a photo?

Currently pretty good at the South Pole. The pink skies are wild. Green auroras are fairlty common over the winter, but it's unusual for it to be this red. If you're interested in a real time video, here's one I captured a few weeks ago from our "back yard" (excuse the Instagram link) https://www.instagram.com/reel/C6T27pEO7dQ/?igsh=eXJyOGtuY2l...

Unrelated but why are you at the South Pole?

Re: Most of Europe is glowing pink under the aurora

#253

Post by robxorb »

nico wrote: post #121

This is related to the cycles of Earth’s core Our planet’s magnetic field is “entangled” with the Sun’s activity This unusual flare means unusual activity for our magnetic field, hence for the core as well It would be cool to have some realtime comparison/visualization of Earths magnetic core activity, vs solar flares

Could you provide sources for this? Sounds plausible, given it is electromagnetic energy.

Re: Most of Europe is glowing pink under the aurora

#254

Post by kragen »

throwaway_ab wrote: post #149
kragen wrote: post #142

Earlier quoted context omitted.

car headlights are brighter than the sun from a short enough distance; perhaps you think we can guess what distance you're talking about seeing the car headline from, but actually you have to be explicit about it

In the dark notice how much light comes from a phone and how much that illuminates the person holding the phone. A car headlight shining your way from hundreds of meters even over 1km will often illuminate that person far more than their phone screen. So if the phone screen is enough to undo the hour long eyes adjusting to the dark duration, then the car headlights at almost any realistic distance causes an undo.

a headlight a kilometer away may be spread over 36000 square meters including your face. (more detailed info on headlight antenna gain would be appreciated.) a 1200-lumen high beam over that area is 0.03 lux

a 500 nit phone screen emitting over about a steradian from an 80mm × 160mm area is 6.4 lumens, but at night you usually turn it down to minimum brightness, say 0.6 lumens. (i haven't measured.) at a distance of 300mm that steradian is 0.09m², so it's about 6 lux

so the cellphone is about 200 times brighter than the headlight at that distance, and that's also observable from looking at people using cellphones walking on the highway

but the person i was asking for more detail didn't specify that the headlight is pointed at your face; and in most situations where you can see headlights, they're not pointed at you. that's just a detail you filled in

Re: Most of Europe is glowing pink under the aurora

#256

Post by xinayder »

I'm on a trip visiting my friend in Central Finland and yesterday we had a 96% warning for aurora chance. Unfortunately, for us, the sky was quite cloudy and we didn't get a chance to see the lights. When we were heading back home I saw a faint line of blueish-purple in the sky, which seemed unusual, and told my friends "hey what if this is the aurora". I checked the photos from the other people that claimed they saw the lights and it checked out with what I've seen.

Re: Most of Europe is glowing pink under the aurora

#257

Post by _ph_ »

deadbabe wrote: post #191
chgs wrote: post #49

Earlier quoted context omitted.

Doesn’t look like that in reality. If I take a photo on my phone here in the UK midlands I get pink and green in all directions with a 3 second exposure. However with just the naked eye it’s like super high level clouds

Ok why is it that some people say northern lights look EXACTLY like these spectacular photos, and others say in real life they are actually barely visible and you need a camera and very dark skies? Is there some kind of running joke I’m missing? I saw some northern lights in Iceland but they were very dim and underwhelming, I didn’t even know what I was looking at until I photographed them and saw the vivid green str…

I saw them yesterday mostly as light grey clouds. But at one moment, those clouds turned slightly red to me. I am at a very bright location and quite far to the south. So I only can assume, that their brightness was at the brink of color vision and that my eye wasn't perfectly adapted to the dark. In better circumstances and perhaps with a tiny bit more "signal", they should appear in colors.

Re: Most of Europe is glowing pink under the aurora

#259

Post by kzrdude »

sebastianconcpt wrote: post #160
grafelic wrote: post #101

I feel I need to report my experience from Denmark, Jutland. It started with white broad streaks, which most of all looked like fog, but then perhaps after 10 minutes or so, we saw colors of red, purple and green begin to emerge from the these streaks. Most astoundingly it all seemed to emanate from a fluctuating point in the middle of the sky. If you looked closely at this point you could see it fall into itself, mo…

Thank you for sharing that. I wonder at what speed the morphing happen, also a sense of proportion. Very hard to capture that in anything but direct experience.

Thee scale is what the pictures don't capture. The color is stronger in the camera but at some point there was a red or pink streak across half the sky. From zenith and down 1/2 way on one side and 2/3 on the other side. As usual, it's hard for a camera to capture the feeling of being there and having it all above you.

The scale of change I saw yesterday is that it fades in or changes over five seconds maybe, it's not changing faster than that. The most intense lights were over some 20 minute period maybe and then slowly it was mostly disappearing again.

Re: Most of Europe is glowing pink under the aurora

#260

Post by throwaway290 »

kortilla wrote: post #190
dgellow wrote: post #164

Earlier quoted context omitted.

Now that’s a badass sentence. What is your team working on?

Based on the about: “Code monkey at the elongated muskrat’s not-earth corporation” Starlink

Based on lack of response, starshield or some other defense or spy sats
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