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Uranus Observation (September 19, 2010)

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#1 CarlosEH

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Posted 22 September 2010 - 05:52 PM

I made an observation of Uranus on September 19, 2010 (04:00 U.T.) using my 9-inch (23-cm) F/13.5 Maksutov-Cassegrain (310x) under average to good seeing (5-6/10) conditions. A light (shaded, 6/10) band was noted over the equatorial region of the planet with dusky (4/10) bands on either side of it (possibly a contrast effect to the light band as well?). The North Polar Region (NPR) was brighter (6/10) than the surrounding areas to the south. The albedo features described were visible primarily when the seeing steadied for moments at a time.

A digital image produced in Acorn.

The best of luck in your own observations of Uranus.

Carlos

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#2 Sol Robbins

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Posted 22 September 2010 - 06:03 PM

Carlos,

Wonderful sketch.

#3 lunar

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Posted 22 September 2010 - 08:37 PM

Great Sketch! You really captured a lot of detail!

#4 CarlosEH

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Posted 22 September 2010 - 09:13 PM

I produced a graphic of the orientation of Uranus at this time based upon a globe produced in CalSKY. The orientation of the poles (north pole below the orbital plane (tilt axis 97.8 degrees)) and retrograde rotation (rotation of the planet from east to west; stars would rise in the west and set in the east). This is confusing but Uranus is a topsy-turvy world.

Carlos

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#5 Sol Robbins

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Posted 22 September 2010 - 09:22 PM

Carlos, Thanks for putting this up.

#6 frank5817

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Posted 22 September 2010 - 10:08 PM

Carlos,

Very nice work pulling in this close up view of the 7th planet. That 9 inch scope works very well on planetary detail.
Excellent sketching and reporting. :cool: :bow: :rainbow:

Frank :)

#7 CarlosEH

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Posted 23 September 2010 - 08:47 AM

Thank you all for the kind compliments on my Uranus observation. Uranus has become an interesting planet to me once again as it is exhibiting a small amount of detail. I am glad that the Uranus graphic helps to better understand what we are looking at. The best of luck in your own observations.

Carlos






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