Jupiter on 29/1

bird (Anthony Wesley) · #1 29-01-2005, 03:14 PM

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] (Paul) · #2 29-01-2005, 03:22 PM

Nice detail Anthony. Is it pixel displacement causing the hard edge to the right?

bird (Anthony Wesley) · #3 29-01-2005, 03:28 PM

Yeah, rotation artifact. This capture ran for about 90 seconds, long enough for that to show up :-(

Bird

iceman (Mike) · #4 29-01-2005, 03:48 PM

Why won't Jupiter stay still for just a bit longer

westsky · #5 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

bird (Anthony Wesley) · #6 29-01-2005, 04:28 PM

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

bird (Anthony Wesley) · #7 29-01-2005, 04:30 PM

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] (Paul) · #8 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.

bird (Anthony Wesley) · #9 29-01-2005, 04:39 PM

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] (Paul) · #10 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 · #11 29-01-2005, 05:30 PM

Nice shot Bird, like the detail and very crisp.