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Astronomy Picture of the Day
Titan, Rings, and Saturn from Cassini
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#113057
by
[z]Barbara Harris
@
09.03.2011 00:00
- nach oben -
Titan, Rings, and Saturn from Cassini
Explanation: How thin are the rings of Saturn?
Brightness measurements
from different angles have shown
Saturn's rings
to be about one kilometer thick, making them many times thinner, in relative proportion, than a
razor blade
. This thinness
sometimes appears
in
dramatic fashion
during an image taken nearly along the ring plane. The
robot Cassini spacecraft
now orbiting
Saturn
has now captured another shot that dramatically highlights the ring's thinness. The
above image
was taken in mid January in
infrared
and
polarized
light.
Titan
looms just over the thin rings, while dark
ring shadows
on Saturn show the Sun to be above the
ring
plane.
Close inspection
of the image will show the smaller moon
Enceladus
on the far right. Cassini, humanity's first mission to orbit
Saturn
, currently has
operations planned
until 2017. Work for APOD while researching the universe:
Graduate student research assistant sought
Credit & Copyright