Compared to yesterday, the seeing slightly deteriorated this morning (Pickering ~4-5, poor-fair), as can be seen in the Capella star test. Nevertheless, still quite useful conditions for planetary and lunar imaging. The RGB image shows an interesting orange feature p-GRS. This time, I also captured some CH4 data. Beside the usual brighter features like GRS and Oval BA, the CH4 image also shows some small-scale features across the whole Jovian disc. For processing the RGB data, I used the LRGB approach by Damian Peach, which is descried in much more detail in his 10 part tutorial series Jupiter from Barbados - Complete Workflow.

Original: LRGB image (03:01 UT)
Revision B: IR image (03:12 UT)
Revision C: CH4 image (03:25 UT)

If you want to process the data yourself, I uploaded the raw stacks straight out of AS!3 here.

07.09.2023 (02:54 UT - 03:31 UT)

Celestron C14 Edge HD @ f=6650 mm (F/28), res = 0.09"/px
+ Celestron CGE Pro mount
+ Celestron EF
+ ZWO ASI 290 MM
+ Baader 2x VIP Barlow
+ ZWO EFW
+ Astronomik RGB filter
+ Baader IR (685 nm) filter
+ Baader CH4 (889 nm) filter
+ Tempest Cooler
+ Omegon Dew Heater
+ Astrozap Dew Shield for C 14

Very short imaging train: I simply screwed the Baader VIP Barlow into the nose piece of the ZWO EFW. However, the small pixel size of the ZWO ASI 290 MM leads to a pixel scale of 0.09"/px at a reasonable f-ratio of f/28.

R: 1 x SER movie
G: 9 x SER movies
B: 3 x SER movies
IR: 6 x SER movies
5000 frames/movie
1x1 bin

CH4: 9 x 90 s SER movies
2x2 bin

recorded with Firecapture

Jupiter 50° above the horizon
Seeing: Pickering 4-5 (poor - fair)

Postprocessing

IRRGB

Autostakkert!3:
- Stacking 60% of the frames/movie (IRRGB)
- Image Stabilization Planet
- Quality Estimator: Laplace, Noise Robust 5, Local
- Reference Frame: Autosize
- Normalize Stack 90%
- Minimum AP size = 104, Min Bright = 45, Multi-Scale

Registax:
wavelet sharpening using layer 2 & 3, step increment = 1, contrast= 95

Photoshop CS2:
- increase image size by 160 % using bicubic interpolation (smooth)

LRGB image

WinJUPOS:
- image measurement of RGB images
- image de-rotation of all RGB images into one luminance image
- image de-rotation of 2xB images into one B master image
- RGB image de-rotation of R,G and B master image into RGB image

Photoshop CS2:
- apply unsharp mask to lum image
- despeckle lum image
- apply unsharp mask to RGB image
- despeckle RGB image
- color correction of RGB image
- color desaturation of the blue and red colors at the planetars limbs
- increase color saturation of RGB image

Topaz Denoise 6:
noise reduction of RGB and lum image

Photoshop CS2:
- combine lum and RGB image into LRGB
- local sharpening of features of features in the polar regions and STB using unsharp mask
- darkening of the background

IR image

WinJUPOS:
- image measurement of IR images
- image de-rotation of 5xIR images into one IR master image

Photoshop CS2:
- apply unsharp mask to IR image
- despeckle IR image

Topaz Denoise 6:
noise reduction of IR image

CH4 image

Autostakkert!3:
- Stacking 80% of the frames/movie
- Image Stabilization Planet
- Quality Estimator: Laplace, Noise Robust 5, Local
- Reference Frame: Autosize
- Normalize Stack 90%
- Minimum AP size = 48, Min Bright = 20, Multi-Scale

Registax:
wavelet sharpening using layer 2, step increment = 1, contrast= 95

Photoshop CS2:
- increase image size by 260 % using bicubic interpolation (smooth)

WinJUPOS:
- image measurement of CH4 images
- image de-rotation of 9xCH4 images into one CH4 master image

Photoshop CS2:
- apply unsharp mask to CH4 image
- despeckle CH4 image

Topaz Denoise 6:
noise reduction of CH4 image

Schwentinental (Germany)

-CS Daniel