I thought I could see activity directly above me, so I took an exposure pointed towards the Zenith.
Ballykelly, just outside Limavady, Co. Londonderry.
Canon 5D mark 2 with 24mm f1.4L lens with remote shutter cable and tripod.
Looking North over the Foyle to Donegal.
ISO 1600 for 9-10 secs at f2.2 – f3.2. 2105 – 2115hrs 17/03/15
A Coronal Mass Ejection from the Sun resulted in a very powerful major geomagnetic storm today. Ive been following space weather for about 6 months now and this is the first time Ive seen the Kp index = 8 and the Interplanetary Magnetic Field get into the 30 nT range overall with about 17 nT in a Southerly direction.
Like 2 bar magnets coming together with the same poles aligned, if the IMF is Northerly, the charged particles from the CME are repelled but if the IMF is Southerly the particles attract and they are more likely to get through.
These images are from “Solar Monitor” – the IOS app that I use to watch out for Aurorae: