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#1
06-20-2010, 03:03 PM
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How would Pandora's oceans act with it's position in space?
I was just thinking, the Earth has a pretty strict way in which the sea behaves. The moon has some pull on the sea, and probably other minor forces (the Sun, and maybe where the sea is in relation to the point on Earth like near the equator). How would Pandora's oceans be affected by it's position? Such as Pandora is a moon rather than a planet so it closely rotates around the gas giant, as well as the other moons and dual suns surrounding it. Would there be tides like there is on Earth? Would the different gravity also have an affect?
Any thoughts?
__________________
 Eventually after centuries of war they gave up fighting and assimilated the enemy and found the enemy was themselves. We are all seeds of the great tree, whose strength is in our legs, like the mighty trunks. In our arms, as sheltering branches. In our eyes, the blue-flower, which unfolds to the sun. We are all seeds of the great tree, whose song is within us. 
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#2
06-20-2010, 03:31 PM
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It probably does have tides because of the gas giant being so big and so close. I would almost guess that creatures on the side facing Polyphemus would be a little lighter than those on the other because if Polyphemus is as big as Jupiter which has around 254% of Earths gravity and Pandora has much less, maybe the gas giant could have an affect on more than just the oceans.
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#3
06-20-2010, 04:24 PM
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Polyphemus is infact an up-side-sown, purple jupiter. If you look closely, and the tides would be enormous, the gravitational pull on the oceans would be significant, probably like our oceans, but magnified x100
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#4
06-20-2010, 09:17 PM
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So if Polyphemus has an affect like the moon does on Earth, the tidal changes would be pretty dramatic. Does Pandora rotate? That also affects the tides, and if it is locked in rotation (like our moon always faces us with the same side) that would mean the ocean would be deeper at the side facing Polyphemus since there would be a bulging affect.
__________________
Eventually after centuries of war they gave up fighting and assimilated the enemy and found the enemy was themselves. We are all seeds of the great tree, whose strength is in our legs, like the mighty trunks. In our arms, as sheltering branches. In our eyes, the blue-flower, which unfolds to the sun. We are all seeds of the great tree, whose song is within us.
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#5
06-20-2010, 09:52 PM
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no, i think it has a regular rotation, yet everything on Pandora is bigger than on earth, so i figure the oceans would be very deep
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#6
06-24-2010, 01:15 AM
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Quote:
The stronger gravity of Polyphemus would mean deeper oceans, as people have mentioned. The other moons wouldn't have much of an effect in comparison.
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#7
06-24-2010, 01:25 AM
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Quote:
Edit: F = the gravity acceleration, like here on Earth 9.81 N
__________________
I plunge again and again, continuously, in an imaginary universe and wake up while realizing that this wonderful and exiting world will only exist in my head and heart.  Always believe in Pandora, Never be assimilate by this society!! *̡͌l̡*̡̡ ̴̡ı̴̴̡ ̡̡͡|̲̲̲͡͡͡ ̲▫̲͡ ̲̲̲͡͡π̲̲͡͡ ̲̲͡▫̲̲͡͡ ̲|̡̡̡ ̡ *̡͌l̡* Last edited by Migg3006; 06-24-2010 at 01:28 AM.
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#8
06-24-2010, 01:33 AM
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there the wiki link for poeple who want to know more: Gravitation - Wikipedia, the free encyclopedia
__________________
I plunge again and again, continuously, in an imaginary universe and wake up while realizing that this wonderful and exiting world will only exist in my head and heart. Always believe in Pandora, Never be assimilate by this society!! *̡͌l̡*̡̡ ̴̡ı̴̴̡ ̡̡͡|̲̲̲͡͡͡ ̲▫̲͡ ̲̲̲͡͡π̲̲͡͡ ̲̲͡▫̲̲͡͡ ̲|̡̡̡ ̡ *̡͌l̡*
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#9
06-24-2010, 02:00 AM
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Yes, there can still be gravitational forces on an object, but AFAIK, it wouldn't work being that close to Polyphemus based on it's mass. Maybe I'm wrong there though, it has been 3 years since I did any physics and I've forgotten a bit there.
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#11
06-24-2010, 02:08 AM
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One star is in orbit around the other.
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#13
07-16-2010, 06:31 PM
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hope this diagram helps, remember that while pandora orbits Polyphemus, Polyphemmus orbits Alpha Centuri A
__________________
There are many dangers on Pandora, and one of the subtlest is that you may come to love it too much. 
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#15
08-12-2010, 01:24 PM
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I think the sun does not have a significant influence due its distance as dont the other moons. They would be only secondary fluctuations. The major influence would be the gas giant, especially as Pandora rotates by itself. The fact that Pandora rotates makes it clear though that it is not too close to the planet, so the gravitational pull cannot be that hard and the tides not too big. If the pull would be large, Pandora would evenutally be locked (as Earths Moon).
__________________
Know your idols: Who said "Hitler killed five million Jews. It is the greatest crime of our time. But the Jews should have offered themselves to the butcher's knife. They should have thrown themselves into the sea from cliffs.". (Solution: "Mahatma" Ghandi) Stop terraforming Earth (wordpress) "Humans are storytellers. These stories then can become our reality. Only when we loose ourselves in the stories they have the power to control us. Our culture got lost in the wrong story, a story of death and defeat, of opression and control, of separation and competition. We need a new story!"
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