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Questions tagged [cassini]

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How old are Janus and Epimetheus?

How old are Janus and Epimetheus, and are they believed to have formed out of a collision? (I think would explain their shared orbit). Not the age of their elements, which should be similar to the ...
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What does “Active Weather Patterns” mean?

I just read that Cassini discovered titan had "active Weather patterns". What does that mean?
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How can we map masses orbiting the outer Solar System by determining the orbits of planets and smaller objects?

Neptune was discovered 170 years ago with the help of observations of Uranus' orbit. A great demonstration of the scientific principle for its time. Recently, Earth and cis-Lunar based radio ...
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Exactly what in Saturn has been located to within 4 km precision?

Saturn has been located with fantastic precision thanks to Cassini and VLBI. The location of the 120,000 km diameter giant planet (when defining the 1 bar pressure level as its surface) is known to ...
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Refraction by Saturn's atmosphere - how dense is it here?

This tweet from CassiniSaturn shows an image of Saturn's rings being optically distorted by the dense atmosphere. It is explained more fully on this page and is available here. The refraction is ...