View Full Version here: : Jupiter on 29/1
Here's the last Jupiter from me for a while - this was taken at 5.19am this morning.
Composite of 300/700 frames in red,green,blue.
d=250mm, fl=6000mm, exp=40ms
The GRS has just rotated out of view to the southwest (bottom left).
regards, Bird
[1ponders]
29-01-2005, 03:22 PM
Nice detail Anthony. Is it pixel displacement causing the hard edge to the right?
Yeah, rotation artifact. This capture ran for about 90 seconds, long enough for that to show up :-(
Bird
iceman
29-01-2005, 03:48 PM
Why won't Jupiter stay still for just a bit longer :P
westsky
29-01-2005, 04:27 PM
Great detail Bird but I have a question , why are we not seeing a clearly defined edge? It seems the is quite a large amount of vignetting, what are you using to get these great shots?
David
Actually, I have a better one... This was data grabbed at 15fps, so there is less noise. This only works if the seeing is very steady becuse of the longer exposure for each frame,
Bird
David, I'm pushing my camera to its limit, so the lower light levels at the edge of the planet are problematic :-)
Now I'm wishing I had a 12" mirror instead of a 10", images would be a lot brighter, and I could capture detail right to the edge.
Maybe next year...
Bird
[1ponders]
29-01-2005, 04:31 PM
I definately prefer this one. It's a shame its so hard to get even illumination across the entire image.
Don't forget - Jupiter is showing a phase to us, so we can't see the western limb yet, not until opposition in April.
Bird
[1ponders]
29-01-2005, 04:45 PM
An by that time it will be nice and high above us at a decent hour. I'm looking foward to it.
rumples riot
29-01-2005, 05:30 PM
Nice shot Bird, like the detail and very crisp.
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