[AZ-Observing] Re: Saturn Storm Time-lapse
- From: Howard Anderson <handy13@xxxxxxxxxxxxxx>
- To: az-observing@xxxxxxxxxxxxx
- Date: Sat, 08 Jan 2011 19:41:45 -0700
Excellent Tom!
Yes. Rotation rate of about 10.5 hours is
360/(10.5*6) or 5.7 degrees every 10 minutes.
(Rotation rate is more precisely 10 hours, 39 minutes and 22.4 seconds
+/- 8minutes?.
You can derive a more accurate figure if desired... 5.7
is close enough to provide the general idea... :-)
http://www.newscientist.com/article/dn9100-saturns-rotation-puts-astronomers-in-a-spin.html
)
Chris Schur wrote:
>Tom, its interesting how fast saturn rotates. Looks like that white "dragon"
>storm is really spreading out now. Great stuff!
>Clear Skies,
>
>
>
>Chris
>
>
>
>Schur's Web Portal: http://www.schursastrophotography.com
>
>--- On Sat, 1/8/11, Tom Polakis <tpolakis@xxxxxxx> wrote:
>
>From: Tom Polakis <tpolakis@xxxxxxx>
>Subject: [AZ-Observing] Saturn Storm Time-lapse
>To: AZ-Observing@xxxxxxxxxxxxx
>Date: Saturday, January 8, 2011, 12:53 PM
>
>The storm in Saturn's northern hemisphere has spread around the globe, but
>there is still some detail to be seen. This morning, I used the C11 and a 2x
>Barlow for 7600mm focal length and 0.15" per pixel in this sequence of three
>frames. The unevenness in the brightness was caused by some dew on the
>corrector plate. The neighbors were thinking: "why do our neighbors go
>outside to dry their hair in the morning?"
>
>http://www.pbase.com/polakis/image/131683085
>
>Tom
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Thanks,
Howard, in Tempe AZ
Http://www.astroshow.com
http://www.AZcendant.com
http://www.ShastaDaylight.com
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