Author Topic: New ring found around Saturn  (Read 4045 times)

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Offline Enigmatic Entity

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Re: New ring found around Saturn
If that moon keeps taking up particles from the ring, it's going to slow down and crash into Saturn - maybe in a million years, but still...
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Offline FUBAR-BDHR

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Re: New ring found around Saturn
* FUBAR-BDHR sets his alarm clock :D
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Offline watsisname

Re: New ring found around Saturn
On a related note, I think I recall reading somewhere that Mars' moon Phobos is supposed to decay and smash into the planet in the "somewhat" near future.
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Offline FUBAR-BDHR

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Re: New ring found around Saturn
Either both are on 1 is and the other will escape.  They are both captured asteroids. 

Out moon will escape too but only if it gets out before the dies.   
No-one ever listens to Zathras. Quite mad, they say. It is good that Zathras does not mind. He's even grown to like it. Oh yes. -Zathras

 

Offline watsisname

Re: New ring found around Saturn
Wait, what?  lol
In my world of sleepers, everything will be erased.
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Slowly we crawl in the dark.
Swallowed by the seductive night.

 

Offline Liberator

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Re: New ring found around Saturn
I think what he means is the Moon, aka Luna, will eventually sling off from Earth orbit and become a free satellite of the Sun.  This event is supposed to happen in about 350,000 years IIRC.
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Offline NGTM-1R

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Re: New ring found around Saturn
I dunno, I'm not gonna jump all over Liberator here. He might have a few points. I'm wondering about the 'putting out far more energy than it receives' thing. I know that Jupiter has a killer electromagnetic field, but past that, would it really put out energy?

That's a genuine question, so I've got to do some research.

IIRC Jupiter glows in infrared much too bright to be merely re-radiating.
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Offline StarSlayer

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Re: New ring found around Saturn
I dunno, I'm not gonna jump all over Liberator here. He might have a few points. I'm wondering about the 'putting out far more energy than it receives' thing. I know that Jupiter has a killer electromagnetic field, but past that, would it really put out energy?

That's a genuine question, so I've got to do some research.

IIRC Jupiter glows in infrared much too bright to be merely re-radiating.

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Offline watsisname

Re: New ring found around Saturn
I think what he means is the Moon, aka Luna, will eventually sling off from Earth orbit and become a free satellite of the Sun.  This event is supposed to happen in about 350,000 years IIRC.

Aye, I assumed something along those lines, but the way he wrote it was kind of ambiguous and funny. =P
I think I read a figure that the moon's average distance increases about a centimeter per year, but I could be way off on that.  The mechanic for this is tidal drag, and it's a bit weird how it works.  The moon's gravity causes tides on Earth, and the tides cause friction on Earth's rotation which gradually slows it down.  At the same time, the tidal bulge pulls back on the moon, and since one bulge is always slightly ahead of the moon, the moon accelerates, which pushes its orbit higher.

Edit:  Actually, this website explains it pretty well.  And apparently the moon will not escape from Earth, but stabilize in a larger orbit sometime in the far future. http://www.aerospaceweb.org/question/astronomy/q0262.shtml
« Last Edit: October 09, 2009, 11:48:31 pm by watsisname »
In my world of sleepers, everything will be erased.
I'll be your religion, your only endless ideal.
Slowly we crawl in the dark.
Swallowed by the seductive night.