A place were I can write...
My simple blog of pictures of travel, friends, activities and the Universe we live in as we go slowly around the Sun.
February 24, 2014
Where are the rings?
If this is Saturn, where are the rings? When Saturn's "appendages" disappeared in 1612, Galileo
did not understand why. Later that century, it became understood that Saturn's unusual protrusions
were rings and that when the Earth crosses the ring
plane, the edge-on rings will appear to disappear. This
is because Saturn's rings are confined to a plane
many times thinner, in proportion, than a razor blade. In modern times, the
robot Cassini
spacecraft orbiting Saturn now also crosses Saturn's
ring plane. A series of plane crossing images from 2005 February was dug out
of the vast online Cassini
raw image archive by interested Spanish amateur Fernando Garcia Navarro. Pictured
above, digitally cropped and set in representative colors, is the striking
result. Saturn's thin ring plane appears in blue,
bands and clouds in Saturn's upper atmosphere appear
in gold. Details of Saturn's rings can be seen in the high dark shadows across the top of this image, taken back
in 2005. Moons appear as bumps in the rings.
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