3:59 AM / 10:59 UTC
| The
Northern Lights in California early on July 27, 2004 Location: Lake Berryessa Camera: Canon AV-1 Lens: 50 mm Observers at high, middle and low latitude regions in North America witnessed strong auroral activity all night on July 26/27. The source of this disturbance was the arrival of a strong full-halo coronal mass ejection associated with a long-duration M1 solar flare on July 25. Solar wind speeds at +/- 1000 km/s combined with a southward pointing interplanetary magnetic field (IMF) produced severe geomagnetic storm conditions (G4 on the NOAA scale) between 00:00-15:00 UTC on July 27. |
4:02 AM / 11:02 UTC
10 minute exposure at 2:00 AM / 09:00 UTC
4:25 AM / 11:25 UTC
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all
images © Dirk
Obudzinski 2004
More aurora images: Alaska, September 2000 Alaska, April 2001 Arizona, October 2002 Wyoming, October 2002 California, October 2003 |
