天王星 月惑星研究会 関西支部
Uranus Image 2006/08/26(UT)
Arnaud van Kranenbu,Willem Kivits,Paolo R. Lazzarotti
Arnaud,W.Kivits,P.Lazzarotti
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Arnaud van Kranenburg(235mm SCT) |
Subject: Uranus 2006/08/26
Date and time: 2006/08/26 00:00-30 (UT)
235mm SCT
SKYnyx 2-0
Seeing 7/10 Trans 5/10 (varying)
Comments
The night of 26 august started very clear,but became obscured by mist later on. The seeing was good,very stable air,even at low altitudes. I was able to capture 2 channels of Uranus,but,unfortunately,I was unable to sample a blue channel because of the upcoming mist.
[アナド:オランダ]
[Arnaud van Kranenburg:Vlaardingen Netherlands]
Unauthorized use prohibited
無断使用禁止
[キビツ:オランダ]
[copyright(c)2006 Willem Kivits:Siebengewald Netherlands]
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Paolo R. Lazzarotti (250mm Newton) |
Here an image of Uranus recorded in the R+IR band.
I can't see any real feature there despite the appropriate filter for detecting the SPC. Some short spell with fairly good seeing allowed me a stack of frames showing a sharp border planet.
I feed some suspect on this year the SPC is hardly visible because too weak.
Pushing a lot the processing, a pattern with features pops up but it dramatically varies with the processing, so I'm 99% sure this is junk.
3 moons out of 5 were captured, Ariel was behind the disc and Umbriel was glued to Miranda.
Hope to have a good chance soon or later to take some hires image in the IR band.
A solid steadyness is required for the unbinned long exposuring.
[Paolo R. Lazzarotti : Massa-City,Italy]
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