..And how would it effect the current track of the planetary orbit and gravitational pulls?
Responses (1)
It's hard to imagine the immensity of space. Here is an example to give you an idea just how far apart things are.
The distance from earth to sun is called an astronomical unit, AU. It happens that the number of AU in a light year is nearly equal to the number of inches in a mile. Imagine the earth to be one inch away from the sun. At this scale the sun is less than one hundredth inch wide, just a speck of dust. The entire solar system would fit within a man's outstretched arms. The nearest star is another speck of dust FOUR MILES away.
The gravitation at that distance is ONE TRILLIONTH of Earth gravity. And that is the NEAREST star. Two galaxies likely could pass through each other with no measurable effect at all.
I'm afraid you are slightly terrible at expressing what you are thinking. You might like to read "Analog Science Fiction And Fact" to gain some insight and familiarity with the genre. You really need to have clear thoughts and the ability to describe them easily and in simple terms.
www.amazon.com/Analog-Science-Fiction-Fact/dp/B00005N7VP
Theoreticians have found five stable orbits for two satellites around a central body. They are called Lagrange points and you can look them up at wikipedia.com. A real life example was found accidentally: two moons in the same orbit. As one moon overtakes the other it is sped up by gravitation and rises to a higher orbit. The moon ahead is slowed by the same force and falls to a lower orbit. The lower orbit takes less time than the higher, so the moons drift apart until one overtakes the other again and they swap positions again. The two orbits differ by less than the diameter of either moon.
curious.astro.cornell.edu/about-us/59-our-solar-system/planets-and-dwarf-planets/moon/241-how-can-two-moons-of-saturn-share-the-same-orbit-intermediate
Hmm.. okay,
simply put, without the complications I had come across:
Is it possible that Humans can live on a planet where, at one point of the year, the planet experiences a Lower gravity level, so that if you were to jump you would raise few lengths higher than usual; but at the Opposite point of the year, the planet experiences a Higher gravity level, and your usual jump distance would only be half as high as usual.
What would it require to make that happen?
From your comment it sounds like If there was anyone living on the satellites you mentioned, that they might possibly be encountering this effect?
Thanks for the reply.
I have been reading around a lot of sources on it,
it is quite an overwhelming and complex subject and I am trying to pin-point the various ins-and-outs of the matter as to what I am really aiming at, as I am using the collective information for a project I am working on.
What I really am trying to figure out the waterworks behind, and come to the resulting concept of, is a thriving species(alike humankind) living on a planet where the gravitational pull is stronger at one point of the year, and weaker at the opposite time of the year, in the case of a second galaxy, or planet(or other), colliding/orbiting, and coming closer, and then further away(presumably on the yearly basis) from the main planet, or a similar idea. But I am not entirely certain on what it would require to reach that conclusion, and I am stumped on the complications that it may bring.
It is supposed to be as logical as can be, without any critically devastating effects or events that those living on the planet can't recover from; but if necessary to reach my desired concept I may add in some Sci-Fi elements or have to call it a bust.
So here are some factors I have come up with, if you may..
theoretically..
1. Is this plausible that (by some event) a runaway planet could come within the orbit of this Earth-like doppelganger and stay there for a long period of time without completely devastating one or the other? or rather, a human --or a slightly more "advanced" being(Sci-Fi), survive for a long period of time on a planet alike Earth under the conditions?
2 - What complications can *you* (or anyone else reading this) foresee, in that concept that I have not mentioned?
3 - How badly would it affect the water levels and the likes over long periods of time? I would assume they would rise, not sure by how much. Would they eventually begin to deplete by some means?
4 - Would the orbit have to come so close as to having very severe earthquakes or causing other havoc?
5 - Would the orbit need to propel in some form to something off-axis or like an Oval shape, etc. to effect the gravity as such? and if so, taking into account the gravity and mass of both planets, how long upon entering the orbit would it likely take(ballpark) to stabilize the orbit, or fly off course/collide with each other, etc?
6 - How large would it likely appear in the sky at its closest point and its furthest to someone on the ground?
I have been stuck on this for a while. If I can get some informative responses for these I should be able to pick back up on my work. =)
Cheers~!