Rotation Period Of Saturn, Cassini findings |
Rotation Period Of Saturn, Cassini findings |
Mar 26 2015, 08:46 PM
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Member Group: Members Posts: 241 Joined: 16-May 06 From: Geneva, Switzerland Member No.: 773 |
A new result about Saturn's spin rate was published today:
http://news.sciencemag.org/space/2015/03/s...got-bit-shorter "Helled's team deduced the spin from the planet's gravity field. Saturn spins fast, making its equator bulge outward, which distorts the gravity field in ways Cassini has measured. By modeling this effect, Helled's team reports online today in Nature that Saturn spins every 10 hours and 32 minutes and 45 seconds with an uncertainty of 46 seconds. That's more than 6 minutes faster than Voyager found." "Because Saturn is so big, the equator at the level of the atmosphere must spin nearly 400 kilometers per hour faster than the Voyager value implied. Scientists measure wind speeds relative to the spinning planet, so the new rotation rate alters the estimated wind speeds by that same amount." I would be curious to see the corrected wind profiles. Regards, Marc. |
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Jan 21 2019, 07:45 PM
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Merciless Robot Group: Admin Posts: 8783 Joined: 8-December 05 From: Los Angeles Member No.: 602 |
Topic title edited for clarity and scope.
-------------------- A few will take this knowledge and use this power of a dream realized as a force for change, an impetus for further discovery to make less ancient dreams real.
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