Jupiter and the four Galilean moons - with 90/500 apoAnyone who wants to
photograph planets knows that long and
very long focal lengths are needed to achieve
high magnification. For the largest and brightest planet
Jupiter,
1800 mm focal length is a good start, if a
large aperture is also available for high detail resolution.
So what can you expect with just 500mm focal length and a small aperture of only 90mm?That's exactly what I wanted to find out and that's how this picture was created.
I made two
SER videos with
10000 images each, which I was able to record at
178 fps due to the narrow
ROI of
376x298 px. I exposed the first
SER video on the
moons - Jupiter is of course
pure white because it is significantly overexposed. I then exposed the second
SER video on
Jupiter itself.
I created a short
GIFanimation of both
SER videos that show the photographed
ROI in its
original size(!). The
moons are intentionally overexposed so that
"Ganymede (JIV)" is also visible. Of course,
Jupiter is significantly(!) brighter than its
moons, which remained
invisible in the second video so that
Jupiter's cloud belts were visible - at least!
Tip: See this original
Animated side-by-side comparisonBecause
"PlanetarySystemStacker" (
PSS) cannot handle such small images, I used
PIPP and
Fitswork for stacking on my
Linux desktop in a
virtualized "Windows 7". Further editing, especially the overlaying and the image legend/labeling created later, was then done again under
Linux, with
Gimp.
Tip: See version F for an
image version without annotation< = > 
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