I captured quite a few RGB runs. This was the final of the night. There may be better in amongst them. I'll have to wade through the data over the next few days.
I've done my best to align the channels. It's a compromise. You either end up with details aligned, or the limb. No GRS...but red jnr is there.
Anyway...
Looks like we're in for a few nights of good seeing up here. Hope others are out enjoying it.
Seen a few very nice ones from further up the coast tonight. Looks like a seeing run in the land of now seeing for a change. Make hay while the sun shines.
As for it being a compromise; well no way, detail always, who cares about the limb looking either red of blue??
Yeah. Probably not the word I was looking for. My comment about the channels was more about how it's often the case that you sometimes get blue or red fringing at the limb if you've gone for alignment on the detail within the disc.
Sometimes it gives the appearance the image is not correctly aligned, even though it is....for the detail, rather than the limb.
Nice work Matt. Jupiter has certainly shrunk since I last saw it!
You don't need to compromise on the limb - just process twice in photoshop. Align once on the detail, once on the limb, and combine the two with a feathered selection.
That's what I do when the data is good enough that I care about the limb.
Mike - thanks for the suggestion. I'm really not that fazed about the fringing at the limb. It just seems to be something which gets mentioned from time to time.
Regarding your tip - when you combine the two images using the feather, do you use only the limb detail from the image processed for a good limb? Do you remove the rest of that image's detail using a layer mask, so as to reveal all the sharp detail from the 'detail' processed image?
In the "limb aligned" image, what I do is use the magic wand selection tool and click on the area outside the planet, then "increase" the selection area by X pixels (5-10?) and feather the selection by a few pixels (2-3?).
Then "copy" that selection, and paste it as a new layer on your "detail aligned" image.
Nice image, plenty of detail and oval BA looks good at the CM.
With the quietening down of the activity in the SEB most action now is in the very active NEB. I really like images that highlight that structure and I think your processing job on this image has done just that.
Well done
Regards
Trevor
Last edited by Quark; 21-10-2009 at 03:11 PM.
Reason: accidently sent before finishing
