Aurora activity


Gwyn

Link Posted 08/01/2014 - 10:01
For those of you living in the north - especially those of you in Scotland there is an excellent chance of aurora tomorrow, the 9th and Friday the 10th. There was a massive solar flare yesterday, which should result in good auroral displays a long way south.
So if it is clear get out and have a look.

I hope Bjørn has his camera out!

PaulEvans

Link Posted 08/01/2014 - 10:44
It so happens I'm off to Northumberland tonight (weds) and intending to travel back tomorrow. Sounds like I might be staying in Northumberland longer than planned! Skies are clear also according to current forcast.
Many thanks for the heads up Gwyn.

Paul
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1stEverPentax

Link Posted 08/01/2014 - 11:32
There is lots of solar activity at the moment with some very large sunspots. Better than evens chance of more Coronal Mass Ejections coming our way every day until the weekend which means the aurora could be around for about another week at least.

Great site here to keep you informed

karlo

Gwyn

Link Posted 08/01/2014 - 11:41
I use this site, which I find to be very accurate. It always worked out right when I have been in Norway for instance. Their forecast is for only moderate activity over the weekend, which means it is unlikely to be visible in the UK.
Space weather uses it too.

About time the solar maximum actually got active!

antzutd

Link Posted 08/01/2014 - 11:50
Ahhhhh, this happens too soon! i already book ticket to iceland to see northern lights... but it's in February!
----------
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Gwyn

Link Posted 08/01/2014 - 12:19
antzutd wrote:
Ahhhhh, this happens too soon! i already book ticket to iceland to see northern lights... but it's in February!

Plenty more Aurora to come, don't worry. And Iceland is ideally placed for even low levels. Have fun. We'll look forward to some photos.
Last Edited by Gwyn on 08/01/2014 - 12:19

R o b

Link Posted 08/01/2014 - 12:45
This Lancaster University site does current activity levels. They tweet warnings or it's possible to sign up for warning emails too.

My other half is really keen to see an aurura, and she's down south currently, so there's bound to be a good display before she gets back...

I'm hoping there'll be something still going on for Friday evening so she can finally see it.

Robert.

tyronet2000

Link Posted 08/01/2014 - 19:04
Anyone signed up to look for new galaxies I used to do SETI stuff but I think all the 'Aliens' are intelligent enough to avoid this place
Regards
Stan

PPG

mikeyscope

Link Posted 08/01/2014 - 19:16
This is the indicator to watch ...the little dial on the left of screen that says Magnetic Field Bz Component which should be 0 and preferably well into the negative figures in the yellow to red zone.

Even on nights of reasonably strong aurora if the indicator is greater than 0 into and into the green section (+ figures) aurora is supressed.

So ...if (+) Earth's magnetic field repels ...but if (-) then magnetic field is open for business!


http://www.swpc.noaa.gov/SWN/index.html
My Flickr Site

PaulEvans

Link Posted 09/01/2014 - 08:50
Thanks for that Mikeyscope - I'd got the other links posted already, but not the bz component. Was cloudy last night up here in Northumberland, and kpindex so far low-ish, but will check during the day to see whether an evening in a dark venue is likely to be productive.
Yesterdays forecast was for no cloud. Now showing partly cloudy, which would be OK so long as views to north are clear.

Paul
K3ii, K5, DA16-85, DA35mm Limited, FA77mm Limited, 55mm f1.8 K, 135mm f3.5 M, DA300, DA 1.4 HD TC,
DA16-45, FA24-90, Sigma 15mm f2.8. Cosina 100mm f3.5 macro

Kenty

Link Posted 09/01/2014 - 10:17
Wonder if it will be visible from Birmingham tonight. Clear skies forecast so I will have a look but probably too far South.

John
On a dark desert highway, cool Pentax K5 in my hand.
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mikeyscope

Link Posted 09/01/2014 - 10:59
The aurora forecasts only give a rough guide based on Speed, Direction and Dynamic Pressure but the little dial showing the Bz component is the one to watch as the magnetic field can flip in minutes faster than any forecasts can predict.

If you watch ...in general the auroral oval in Auroral Map window on the same page brightens and fades almost in direct relation to the Bz component even if the Speed & Pressure of the solar wind are high.


Bz ...

North (+) higher the arrow less chance of aurora at lower latitudes.

Neutral (0) 50/50 chance depending on Speed & Pressure.

South (-) lower the better for chance of auroras at lower latitudes.



I think the smilie scale makes things simple!

Mike
My Flickr Site

R o b

Link Posted 10/01/2014 - 10:11
The Lancaster University site didn't show anything other than "No significant activity" all night, but a friend of mine who lives in the countryside outside Aberdeen reports she saw the aurora last night and it was spectacular.

Here's hoping for tonight...

Robert.
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