A quiet morning

Submitted by: Pierre St. Hilaire at Fri Aug 26 18:00:01 2005 UTC



A mild aurora was visible all night long on Aug. 3-4, 2005 over Lac Bonne Entente, 1 hour N. of Chicoutimi, QC, Canada. It got brighter as dawn approached and I took this photograph. 28 mm f/2.8 lens on Olympus OM-1, 15 sec. exposure, Fuji Superia 800 pushed 1/2 stop.

 

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Submitted by: Pierre St. Hilaire at Fri Aug 26 21:59:01 2005 UTC

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Aurora Californialis 11/08/04

Submitted by: Pierre St. Hilaire at Thu Nov 11 03:29:01 2004 UTC



The great aurora of Nov. 8 2004 seen from Harbin Hot Springs, northern California. This substorm started at 5:10 UTC and lasted 10 minutes. For the rest of the night the aurora was visible as a glow hugging the N horizon. The structure was well defined but I could not visually perceive the color. 50 mm f/2 on Fuji Superia 800 pushed 1/2 stop, 20 sec. exposure.

Great aurora of november 21st 2003

Submitted by: Pierre St. Hilaire at Wed Nov 26 08:02:02 2003 UTC

An extreme geomagnetic storm was ongoing again, so I drove to the Lake Sonoma site (CA, USA, 38.5 deg N) and set up at sunset. Activity started to intensify around 5:00 UTC. At this stage the aurora looked monochrome to the naked eye.

Yashica FX-3 camera with 50mm f/2 objective. 20 sec. exposure on Provia 400F pushed 1 stop.

Nov. 21st 2003 aurora

Submitted by: Pierre St. Hilaire at Wed Nov 26 07:33:01 2003 UTC

At 5:30 PM UTC a well defined auroral arc appeared on the NE 20 degrees above the horizon. At its best the arc covered the horizon from N to E and shot a few rays 45 deg. up in the sky. Bright areas undulated along the arc. Visually the aurora was green. The reds were just below the perception limit. It actually looked like a fairly decent South Canada aurora. Activity lasted on and off over the next 2 hours.

Yashica FX-3 camera with 50mm f/2 objective. 30 sec exposure on Provia 400F pushed 1 stop.

Oct. 29th 2003 aurora

Submitted by: Pierre St. Hilaire at Thu Nov 6 02:52:02 2003 UTC

A later phase of the second breakup, which lasted a whole 5 minutes. Yashica camera with 50 mm f/2 lens, Fuji Superia XTRA 800 pushed 1/2 stop, 20 sec. exposure. Copyright Pierre St. Hilaire pierre@sainthilaire.com


Oct 29th 2003 aurora

Submitted by: Pierre St. Hilaire at Thu Nov 6 02:52:02 2003 UTC

A second smaller but very pretty breakup occurred around 11:30 UTC. It consisted mostly of red rays. Yashica FX-3 camera with 50 mm f/2 lens, Fuji Superia XTRA pushed 1/2 stop, 25 sec. exposure. pierre@sainthilaire.com


Oct 29th 2003 aurora

Submitted by: Pierre St. Hilaire at Thu Nov 6 02:52:02 2003 UTC

A later phase of the initial breakup. Yashica camera with 50 mm f/2 lens, Fuji Superia XTRA pushed 1/2 stop, 25 sec. exposure. pierre@sainthilaire.com

Great aurora of Oct. 29th 2003

Submitted by: Pierre St. Hilaire at Thu Nov 6 01:50:06 2003 UTC

Hunting the aurora in California is a bit quixotic, but it has its rewards. I took this image during the breakup phase of the october 29th 2003 aurora from Lake Sonoma, 50 miles N. of San Francisco. The sky suddenly exploded into colorful rays. The breakup phase lasted 10 minutes. This photograph captures the visual appearance of the aurora pretty well.

Yashica FX-3 camera and 50mm f/2 lens. Fuji Superia XTRA 800 print film pushed 1/2 stop. 20 sec. exposure.

pierre@sainthilaire.com

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