Jupiter - 2021-09-25 01:14 UTC - Luminance Alternatives

I produced three alternative images from the same data set, which consisted of 10 RGB runs of 45 seconds on each filter. I chose to extend the length of my captures on the three color filters rather than capturing through the luminance filter. The difference between the three images is that the leftmost image has the R channel folded back in as luminance, G for the center image, and B for the right most. I think that I like center one with green as the luminance channel, but I am interested in knowing what other’s prefer.

 

It seems that each alternative is better than the other two in some way, but I like the G as luminance best. I am interested in knowing what other's prefer.

 

Equipment:

- ZWO ASI290MM

- 1.25 x 8 ZWO Electronic Filter Wheel

- TeleVue 2.5x PowerMate

- Baader Planetarium Flip mirror II

- Moonlite CRL 2.5

- Meade LX850 (12", f/8)

- Losmandy G11

 

Software:

- Firecapture (high-speed video capture)

- Planetary Imaging Pre-processor (cropping and registration of video frames)

- Autostakkert! (stacking)

- Registax (wavelets)

- WinJuPos (de-rotation)

- Photoshop (post processing)

 

WinJuPos processing

- De-rotate 10 each color channel's capture images separately in Image De-rotation of Images tool to produce a de-rotated image for each color channel

- De-rotate the 3 de-rotated color channel .images in De-rotate R/G/B Frames tool, using alternatively the R, G, and the B channel as luminance.

 

Capture settings:

- Exposure: ~10ms

- Gain: ~400

- Histogram: 85%

 

Per channel file info:

- 2.5 Gbytes, 7000 frames, 160 fps

 

Total file info:

- 10 runs x 3 channels = 30 files

- Data collected 210,000 frames/75 Gbytes

 

 

 

Done