Updated 21.3.2013

Aurora Borealis from a M1-class flare Aurora Borealis from a M1-class flare


Site: Laajasalo Oil Harbour (former), Helsinki, Finland 60°09'53" N, 25°00'52" E, looking over city lights
Time: Eastern Europen Time zone UT+02
Camera: Canon EOS 5D Mark III Digital SLR camera with 22,3Mb full frame CMOS sensor
Lens: EF 24-70mm f/2.8 L USM General purpouse zoom lens

The Nurmijärvi magnetometer (NUR) - 5,7 nT/sec peek on 18UT (20EET)
Magnetometer bars on March 17th
The bar plot shows the hourly (in even hours) maxima changes in the horizontal magnetic field components in units of 0.01 nanoteslas per second with 10 minute resolution. The magnetically quiet times are marked with blue bars and the disturbed with red bars. An hour is considered as disturbed if the value in scale of the plot exceeds 0.3 nT/s.


March 17th 18:02UT - 18:58UT (20:02EET - 20:58EET), 32% Moon
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18:05 UT
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18:26 UT
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18:28 UT
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18:28 UT
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18:28 UT
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18:33 UT
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18:34 UT
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18:44 UT

***** Click here for the Northern sky animation (8 minutes display in ten seconds) *****


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All material Copyright © Jorma Koski, Anno Mundi 2013