Bad seeing - so I spend some time on my computer ... drawing interesting pictures.
Picture on left:
Yesterday nights' pictures of Ganymede: 50, 100, 150, 200 frames stacked out of 600.
Picture on right:
ImageJ Interactive Surface 3D plot
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Nasa image resized Ganymede is 16 pixels in diameter |
3D surface plot of simulated view |
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Nasa image resized Ganymede is 7 pixels in diameter Left to Right: Resized, Sharpened, Contrast Enhanced |
3D surface plot of simulated view |
Compared to my featureless pictures of Ganymede (shown at top of this webpage) it seems possible to resolve detail on Ganymede using a 10 inch and a 2x Barlow.
Playing around with the 3D options:
| Grid Size: 32 Smoothing: 0 | Grid Size: 32 Smoothing: 1.9 | Grid Size: 32 Smoothing: 3.5 | Grid Size: 32 Smoothing: 6 |
| Grid Size: 64 Smoothing: 0 | Grid Size: 64 Smoothing: 3 | Grid Size: 64 Smoothing: 7 | Grid Size: 64 Smoothing: 9 |
| Grid Size: 128 Smoothing: 0 | Grid Size: 128 Smoothing: 5 | Grid Size: 128 Smoothing: 12 | Grid Size: 128 Smoothing: 16 |
Simulated view using an f/10 10 inch telescope and a 2x Barlow. Various 3D intensity plot profiles shown. Interesting ...
Left to Right: Just resized, Sharpened, Contrast enhanced.
Nasa image used for this study ... created using the NASA solar system viewer website.