20th February 2014
A second weak CME in as many days buffeted the Earth's magnetic field on the 20th February allowing solar particles to stream into the polar upper atmosphere producing Kp=6 (storm) conditions.
Skies were clearing from the west so I went to my favourite
site at Rickett's Point to see if there was any visible activity. Clouds were
rolling by fast and a window to the south opened up between 1106UT and 1133UT.
During this time there were definite
weak glows in the south which showed as red in photographs.
In addition a number of weak beams were noted particularly earlier in the window
of opportunity. Thick cloud rolled in after 1135UT which signalled that it was
time to go home.
|11:12UT, an active
display in progress close to the peak of activity as the clouds moved away; red glows
and several short red beams. 14mm f2.8 lens at f3.2 on a Canon 450DH body, 20sec
exposure at ISO800.
|11:15UT, three minutes later
and activity diminishing somewhat.
Image details as above.
|11:17UT, cloud begins to roll in again, but still active. Image details as above.|
|11:33UT, cloud are obstructing the south, but activity still visible. Image details as above.|