Any aurora luck for those of us in the Rockies? (Near Yellowstone.)
Level S4 solar radiation event
201–205 of 205 posts
Re: Level S4 solar radiation event
#202Earlier quoted context omitted.
I am not an expert, but it’s worth noting that the kp index has a maximum value of 9. So though the Carrington event had a kp of 9, its intensity on the related (but not capped) HP30/HP60 scale [1] would likely have been higher. [1] https://kp.gfz.de/en/hp30-hp60
Queue Chernobyl documentary clip measuring the radiation as low because that’s as high the meter went
kp 9 - not great, not terrible
Re: Level S4 solar radiation event
#203Earlier quoted context omitted.
Are there any resources to track Aurora sightings or predicted sightings?
https://aurora-alerts.uk/ Ignore the UK TLD, this tracks global sightings
Ahh thank you! I saw a few photos from last night's Aurora sightings down here in Vic, Australia. Maybe next time! :)
Re: Level S4 solar radiation event
#204Re: Level S4 solar radiation event
#205Do you need long exposure to make it visible with a camera? How does that work in the presence of light pollution?
Tonight I could see the colours without the camera but it definitely stands out more with the long exposure of the camera. Even with lights in the direct line of the shot you you can get good results - presumably the phone is doing HDR to achieve this.
I tried it last night (generally cloudless sky). With the naked eye it just looked like light pollution. With long exposure it looked like a weirdly lit picture. In neither case did I see any hint of green or red.
I’m not in the city, but you’d have to actually be two states away to escape its light (literally not figuratively, according to dark sky maps).
:(