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2016_03_06 Aurora (ex-coronal hole 718) 13 | by john.purvis
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2016_03_06 Aurora (ex-coronal hole 718) 13

An old one from the display on 6th March 2016.


0% Moon


A double arc


A coronal hole allowed high speed solar wind to excite and accelerate charged particles in Earth's magnetosphere which then flow down Northern and Southern magnetic field lines.


Parameters were:

Kp = 5

Solar wind speed = 489.3 km/s

IMF Total = 14.8 nT

IMF Bz = 8.2nT South


University of Lancaster magnetometer = 97.7nT deviation from mean.


Samyang 24mm f/1.4 lens at f/2


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Taken on March 6, 2016