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Date: 17 Aug 2006 18:24:50
From: Sam Wormley
Subject: AURORA WATCH: An explosion on the sun yesterday....
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Space Weather News for August 17, 2006
http://spaceweather.com
AURORA WATCH: An explosion on the sun yesterday (Aug. 16) hurled a coronal mass ejection (CME) toward Earth. The
approaching cloud could spark a geomagnetic storm when it arrives, probably on August 18th. Sky watchers should be
alert for auroras.
If a storm erupts, the best displays will be at higher latitudes: e.g., Alaska, Canada, and Scandinavia. However,
auroras could descend to lower latitudes, too, spreading across northern-tier US states from Maine to Washington and
elsewhere.
Sometimes during a geomagnetic storm, the sky appears to be blank--no auroras. The display may be too faint to see with
the unaided eye. Try using your camera: a 15+ second exposure can reveal colorful auroras just below the threshold of
naked-eye visibility. An example of "photographic auroras" over Colorado may be found in our most recent aurora gallery:
http://www.spaceweather.com/aurora/gallery_01aug06.htm
Please visit http://spaceweather.com for pictures of the August 16th explosion and updates about the incoming CME.
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Date: 17 Aug 2006 18:40:09
From: Bert Hyman
Subject: Re: AURORA WATCH: An explosion on the sun yesterday....
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swormley1@mchsi.com (Sam Wormley) wrote in
news:Sv2Fg.3424$aJ.136@attbi_s21:
> Sky watchers should be alert for auroras.
Aha! That explains why we're having clouds and rain for the first
time in a week.
--
Bert Hyman
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Date: 17 Aug 2006 17:22:59
From: David G. Nagel
Subject: Re: AURORA WATCH: An explosion on the sun yesterday....
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Bert Hyman wrote:
> swormley1@mchsi.com (Sam Wormley) wrote in
> news:Sv2Fg.3424$aJ.136@attbi_s21:
>
>
>>Sky watchers should be alert for auroras.
>
>
> Aha! That explains why we're having clouds and rain for the first
> time in a week.
>
Amen. Ours just rolled in south of Chicago.
Dave N
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Date: 20 Aug 2006 11:24:32
From: Willie R. Meghar
Subject: Re: AURORA WATCH: An explosion on the sun yesterday....
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Sam Wormley <swormley1@mchsi.com > wrote:
>Space Weather News for August 17, 2006
>http://spaceweather.com
>
>AURORA WATCH: An explosion on the sun yesterday (Aug. 16) hurled a coronal mass ejection (CME) toward Earth. The
>approaching cloud could spark a geomagnetic storm when it arrives, probably on August 18th. Sky watchers should be
>alert for auroras.
A bright aurora was visible from my northwestern U.S. location last
night (early hours of August 20th UT). I was out observing deep sky
objects (4:00 to 7:00 UT) until clouds became too obnoxious to
effectively dodge. The aurora created difficulties for DSO
observations in the northerly direction; but had little effect from
the zenith southward. I did my best to ignore the aurora, and never
went to the north side of the house to get a better look. The aurora
wasn't structured enough to draw my focus away from the other plans I
had for the evening. Nevertheless, it was quite bright at times.
Willie R. Meghar
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Date: 21 Aug 2006 09:16:01
From: nytecam
Subject: Re: AURORA WATCH: An explosion on the sun yesterday....
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Willie R. Meghar Wrote:
> Sam Wormley swormley1@mchsi.com wrote:
> -
> Space Weather News for August 17, 2006
> http://spaceweather.com
>
> AURORA WATCH: An explosion on the sun yesterday (Aug. 16) hurled a
> coronal mass ejection (CME) toward Earth. The
> approaching cloud could spark a geomagnetic storm when it arrives,
> probably on August 18th. Sky watchers should be
> alert for auroras.-
>
> A bright aurora was visible from my northwestern U.S. location last
> night (early hours of August 20th UT). ...snip... Nevertheless, it was
> quite bright at times.
> Willie R. Meghar
Nice current aurora pic on www.spaceweather.com
Nytecam
--
nytecam
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