Am 19.09.2018 um 13:22 schrieb Mike Horvath:
> Another question: The bitmap is long in the horizontal direction, but I
> don't know which end is supposed to be closer to the axis and which is
> supposed to be toward the outside of the ring. Any ideas?

Left side of the image is the planet side.

Another question to be figured out is, what are the proper distances
from Saturn's center to the inner and outer border of the image?

My guesstimation - judging from
https://en.wikipedia.org/wiki/Rings_of_Saturn - is that the image is
supposed to represent the range from the start of the D ring (left side,
66,900 km from Saturn's center) to the F ring (right side, ~140,220 km).

Alternatively, the image may be supposed to start at the planet's
equatorial surface, 60,268 km from the center.

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