Jupiter december 3 from freezing Norway

[oernulfs]

Celestron 9.25
DBK 21 (color)
2,5 X Tele Vue
CGEM mount

An improvement for me, but it seems that I can improve focus and collimation (and processing, and just about everything....:mad2:). I'm impressed by the amount of details some are able to aquire. Is it due to better seeing, the angle above the horizon, the collimation, the image processing? Or is it a mix of these? (or the person at the computer?) Well, it is much easier to deal with deep sky! Planetary imaging drives me crazy:confused2:

[lepton3]

Hi Rnulf,

Some good detail in that image, but the colour looks unusual to me. Since you use a DBK, you have two places to adjust colour balance. Once is during capture (red gain and blue gain adjustment), and then during image processing (red, green, and blue channels).



Surely all of those things need to line up for you to get a good image, but in my opinion the most important is the seeing.

At least I would have thought it was nice and high in the sky from Norway, if you wait long enough!



For sure, planetary imaging will drive anyone crazy!

-Ivan

[oernulfs]

I think I used the red on 47 ot 48 and the blue something just above 50. The really nice thing to know is how the Big Guys (the gurus) choose their settings in IC Cpature and how they do the processing in Registax 6. What settings for instance in the wavelet section.

I will try another shot tonight, maybe, when Jupiter is higher above the horizon.

[lepton3]

I don't know what the gurus do, but my last image was captured with R=20 and B=50, and it was still too red. I adjusted the blue up in the Registax RGB balance panel.

I stacked in AS!2. For what it is worth, here's what the Registax6 wavelet settings were. Note that down here we are suffering serious atmospheric dispersion, I think that explains the large RGB mis-align!

-Ivan

[Quark]

Hi there Rnulf and welcome, a creditable effort with Jove. Planetary imaging can certainly be a challenge, much must go right to get a good result.

Well done.
Regards
Trevor

[oernulfs]

Thank you, this is what a dummy like me need. I really appreciate it!

Ørnulf

[Shiraz]

Nice detailed image. most image processing packages allow you to do auto white balance, which can help you get back to a reasonable starting point if you end up with an odd colour cast. I use Nebulosity or a Gimp plug-in called grey point.

[asimov]

Hi Rnulf & welcome to the world of planet imaging! Yes the colour balance is out & my first impression was when I saw the image was that you were using an achro refractor..

As far as IC Capture goes, I get the planet on screen, make sure Y800 + Y800 is enabled, press the debayer tab so it turns to colour output, making sure it is fairly bright but no central burnouts & then press 'ONE PUSH' I then disable hardware debayering & start capturing & it usually gives a perfect colour balance.

[oernulfs]

Thank you asimov....I will try to enable the procedure you are describing. Have you any experience with capturing in y2u2 +rgb24? (I think it's called y2u2) Why choose y800? Is it only a question of disk space or has it anything to do with the processing?

[asimov]

Actually my favourite codec in *nice seeing* is YUY2 + unspecified, but I have never tried YUY2 + RGB24 but if it works, why not. I only really use Y800 + Y800 a lot because my seeing is not good most of the time so it pays to run at 60FPS + a very fast exposure to 'freeze the seeing'.

Autostakkert doesn't like YUY2 format but it'll still work ok, but not sure about the RGB24.