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Jupiter Image 2007/04/18(UT)
Fabio Carvalho,David Arditti,Zac Pujic,Donald C Parker
F.Carvalho,D.Arditti,Z.Pujic,Don
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Fabio Carvalho (Newtonian Newtonian 254mm) |
2007/04/18 07:13(UT) - 08:54(UT)
D. 42.1"
Newtonian 254mm f/6 at f/28
DMK21AF04 firewire camera
Seeing 7/10 Trans. 8/10
[Fabio Carvalho : Assis,Brazil]
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David Arditti (250mm Dall-Kirkham Cassegrain) |
Among the other nutty things I have been doing recently has been trying to image
Jupiter at a culminating altitude of 17 deg. from here. On the 18th we had
unusually good seeing,and these are the results - quite worth-while,I think -
but they took a lot of persistence.
Visible is BA,past the CM,and one of the STDs about level with it.
[David Arditti: Edgware Middlesex HA8 5LW: United Kingdom]
Here is another set of images from April 18 UT. This set shows the GRS crossing the CM. The GRS has a fascinating blue ring around its outer perimeter. The f. end of the GRS also has a blue knob (visible in the RGB image). Although this blue knob is not visible in the UV,it is visible in the near-IR. Perhaps this is the source of the blue material currently enveloping the GRS. The p. end of the GRS in particular has a near-IR dark spot which may help determine its current rotation rate. The area around the GRS is even more interesting in the methane band. In 889 nm,the southern,northern,and p. ends are methane-dark. This methane-dark arc around the GRS is poorly visible in RGB.
[Zac Pujic,Brisbane Australia]
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Donald C Parker(16-in (41cm) Newtonian) |
I have attached some LRGB, IR, and methane band images from 18 April.
[ Donald C Parker Coral Gables,Florida U.S.A]
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