Saturn May1 mediocre seeing

[Shiraz]

Hi

Despite the 65kts jetstream, finally had some marginally usable seeing - and only a few clouds - and both occurred when it was dark!!! so got an RGB image of the planet with nice bright rings near opposition. yahoo - missed out near the last opposition due to seeing and clouds. Took a lot to extract a very soft but passable image from the jittery data, but current software can do wonders.

For interest, tried an LRGB in WINJUPOS to get rid of some of the colour mismatch issues, but that gave very strange data loss regions at the ring/planet boundries - not useful.

thanks for looking. regards Ray

[asimov]

Nice work despite the iffy conditions. There's a fairly bright red/rose coloured section on the right limb - An artefact of some sort I suppose?

[Shiraz]

Hi Asi. You didn't mention the blue and green bits. The seeing was variable/bad enough to distort the three colour subs differently - on combining, this was the best alignment I could get, but there are still regions where one sub is providing more colour data than the others. This is exacerbated by stacking widely spaced subs in WINJUPOS. Tried a luminance layer to clean it up, but that didn't work either as noted - decided to manually select and desaturate the worst areas and just leave the rest as is. Normally wouldn't post data with such defects, but I wanted something on the board after 13 weeks of nothing at all.

anyway, have fixed up all the colour problems in the attached image :). regards ray

[allan gould]

Ray,
That's a really fine image and well processed. A lot of people don't realize all of the minor subtle effects that the atmosphere does to a colour image when you put it all together. Your monochrome is really beautiful and no colour defects as you say. :D
Allan

[Quark]

Well done Ray, reckon you have done a good job with what the conditions have dished up.

Regards
Trevor

[Shiraz]

Thanks Allan. You are right - variable seeing can make a mess of multi-pass colour, especially when deconvolution is applied - a Bayer camera would have been more suitable for the conditions. I thought that the mono image would appeal to Asi's sense of humour, but it turned out to be quite nice looking in it's own right.

Hi Trevor. Thanks for the comments. No detail visible with this type of seeing. Frustrating to have such wonderful elevation and not be able to make good use of it.

Regards Ray

[clive milne]

Superb processing Ray...

[U.K.Cowboy]

Beautifully processed images Sir!

[EricB]

Very nice Ray. I too loves the processing.

Eric

[allan gould]

Ray, John and Trevor,
Many thanks for all your posts and information that you pass on as I have learnt heaps from your posts as a newbie.
I'd love one or all of you to do an update on planetary imaging procedures.
Allan

[gregbradley]

Very nice.

Greg.

[Shiraz]

thank you Clive - much appreciated



thanks Stuart



Hi Eric - thanks



I guess that things have changed a bit since the available guides were written - in particular, the software has advanced a lot. Will post a summary soon if it would be any help.



Thanks Greg

Regards Ray

[asimov]

:lol: Yes mono fixes anything to do with colour doesn't it. Green & blue limbs I'm used to seeing but the little patch of rose had me stumped that's all.

Well done again, lovely image:thumbsup:

[Clayton]

Very Very nice Ray:thumbsup::thumbsup:

[ThinBlueLine]

Woah - that's a beauty !! :D

[John Hothersall]

Still decent detail caught. I got similar blue shading on my RGB at the limb as seen on your left side with some green mismatch on the opposite side.

John.

[Shiraz]

hey Rob. Thanks



thanks very much Amanda



I used WINJUPOS to combine the data and got those colour regions on the limbs. will have to work on processing a bit.

regards Ray

[Troy]

A good Saturn :thumbsup:

[Shiraz]

thanks Troy. regards ray