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Friday, September 11, 2015

 

Aurora happening NOW (11 September)

Aurora are happening now, aurora have been reported from multiple sites in Tasmania, both visible to the unaided eye and in camera. Some pinks and greens seen. Currently Velocity: 603 km/sec Bz: -4.0 nT Density = 5.0 p/cc. Kp 5. (there is also a geomagnetic alert current which suggests activity will continue through the night on and off)

Dark sky sites have the best chance of seeing anything, and always allow around 5 minutes for your eyes to become dark adapted.

As always look to the south for shifting red/green glows, beams have been reported consistently over the last few aurora and a large green "blob" has been seen.

The all sky aurora camera in Northern Tasmania at Cressy may be helpful.
<http://www.ips.gov.au/Geophysical/4/2>

SUBJ: IPS GEOMAGNETIC DISTURBANCE WARNING 15/41
ISSUED AT 0017UT/11 SEPTEMBER 2015
BY THE AUSTRALIAN SPACE FORECAST CENTRE.

A high speed solar wind stream from a coronal hole is expected
to arrive late on 11 September. This may result in the geomagnetic
activity rising to Active to Minor Storm levels. This rise in
geomagnetic activity is expected to continue on 12 September.

INCREASED GEOMAGNETIC ACTIVITY EXPECTED
DUE TO CORONAL HOLE HIGH SPEED WIND STREAM
FROM 11-12 SEPTEMBER 2015
_____________________________________________________________

GEOMAGNETIC ACTIVITY FORECAST
11 Sep:  Initially Quiet to Unsettled, then Unsettled to Minor Storm
12 Sep:  Active to Minor Storm


Further monitoring at
http://www.ips.gov.au

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