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I find it interesting that Sedna was discovered near its closest point in its
10,500 year orbit around the Sun. What are the chances of that happening? If you only consider the planet Sedna, the chances of discovering it while it is near is closest point to the Sun are very small. Sedna spends most of its time further away, this leads to the question how many other "Sedna's" are there? What if we looked for a 10th planet 1000 years ago with the same technology we have today? Would we find another Sedna-like planet nearing its closest point to the sun. Sedna will spend 150 closer to the Sun than from where we discovered it. statistically this leaves room for about 60 planets in 10,000 year orbits around the sun. all those planets are potential colonies for future colonists. The ones further away will be harder to find, but I'm sure we can eventually discover them. |
#2
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In article ,
TKalbfus wrote: I find it interesting that Sedna was discovered near its closest point in its 10,500 year orbit around the Sun. What are the chances of that happening? High. Think about what happens to its brightness and motion across the sky as it moves further out. you only consider the planet Sedna, the chances of discovering it while it is near is closest point to the Sun are very small. Sedna spends most of its time further away, this leads to the question how many other "Sedna's" are there? Likely a lot more than 60. Jon __@/ |
#3
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#4
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![]() "Hobbs aka McDaniel" a écrit dans le message de om... (TKalbfus) wrote in message ... We haven't even colonized the moon outside of sci-fi so it's a bit premature to view Sedna as some kind of development property ![]() Besides, who would like to live in perpetual darkness? I mean from there the sun is just a slightly brighter star. Probably we will make homes in space, and I bet most of the construction industry will be space based by the end of this century. All around the earth orbit there is a lot of real-estate. Millions of cubic Km of place where we can grow plants, and live from the food that we grow from the sun. Weather is exactly like the earth since the orbit is more or less the same. But there? In perpetual darkness forever? Doesn't look like a very exciting place to build a home. |
#5
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In article ,
"jacob navia" wrote: "Hobbs aka McDaniel" a écrit dans le message de om... (TKalbfus) wrote in message ... We haven't even colonized the moon outside of sci-fi so it's a bit premature to view Sedna as some kind of development property ![]() Besides, who would like to live in perpetual darkness? People with a mastery of artificial lighting, I suppose. I mean from there the sun is just a slightly brighter star. So? Where I am at the moment, the Sun isn't even as bright as a visible star; in fact it's clear around on the other side of a rather large rocky planet. Yet I still manage to waste time in Usenet. Probably we will make homes in space, and I bet most of the construction industry will be space based by the end of this century. All around the earth orbit there is a lot of real-estate. Millions of cubic Km of place where we can grow plants, and live from the food that we grow from the sun. All true, but you can grow food perfectly well under artificial lights too. (Even if we assume that people colonizing the Kuiper belt still have need of food, which seems unlikely.) Weather is exactly like the earth since the orbit is more or less the same. Weather in a space colony has nothing to do with its orbit. But there? In perpetual darkness forever? Doesn't look like a very exciting place to build a home. Well, don't then. There are billions of people already, with wildly varying opinions on things. I, for example, would be perfectly content there, given a secure supply of energy and raw materials (and technology sufficiently advanced to make use of it). Best, - Joe ,------------------------------------------------------------------. | Joseph J. Strout Check out the Mac Web Directory: | | http://www.macwebdir.com | `------------------------------------------------------------------' |
#6
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We haven't even colonized the moon outside of sci-fi so it's a bit
premature to view Sedna as some kind of development property ![]() Probably will be visited by robot probes within 30 years. I'd bet it's sooner than that. The New Horizons mission that's scheduled to blast off for Pluto in 2006 is also designed to visit Kuiper belt objects. Depending on where Sedna is, it would seem like this would be a logical next stop on this long mission. |
#7
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On Tue, 17 Mar 2004, ARNOLDEVNS wrote:
We haven't even colonized the moon outside of sci-fi so it's a bit premature to view Sedna as some kind of development property ![]() Probably will be visited by robot probes within 30 years. I'd bet it's sooner than that. The New Horizons mission that's scheduled to blast off for Pluto in 2006 is also designed to visit Kuiper belt objects. Depending on where Sedna is, it would seem like this would be a logical next stop on this long mission. No way, according to James Osberg, Sedna and Pluto are in opposition, ie opposite sides of the solar system. |
#8
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all those planets are potential colonies for future colonists.
No planet or other celestial body is inhabitable by homo sapiens sapiens, unless it has gravity between 80% to 120% of Earth. Gravity is the most fundamental force in the Universe and lack of enough gravity (less than 0.8G) depletes your bones and muscles, prevents successful reproduction and fetus formation. To much and you are flat. I don't get all the fuss about travel to Mars and Moon, casue what we need is another Earth. Great pity Venus is in the wrong place, it would be ideal. |
#9
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![]() "Tamas Feher" wrote in message ... all those planets are potential colonies for future colonists. No planet or other celestial body is inhabitable by homo sapiens sapiens, unless it has gravity between 80% to 120% of Earth. Gravity is the most fundamental force in the Universe and lack of enough gravity (less than 0.8G) depletes your bones and muscles, prevents successful reproduction and fetus formation. To much and you are flat. And where exactly did you come up with those numbers? The fact of the matter is we don't know for sure. We simply know that 1G is good, 0G is not so great, and know nothing about in between. It may be .6 G is enough... maybe not. I don't get all the fuss about travel to Mars and Moon, casue what we need is another Earth. Great pity Venus is in the wrong place, it would be ideal. |
#10
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![]() "TKalbfus" wrote in message ... I find it interesting that Sedna was discovered near its closest point in its 10,500 year orbit around the Sun. What are the chances of that happening? If you only consider the planet Sedna, the chances of discovering it while it is near is closest point to the Sun are very small. Sedna spends most of its time further away, this leads to the question how many other "Sedna's" are there? What if we looked for a 10th planet 1000 years ago with the same technology we have today? Would we find another Sedna-like planet nearing its closest point to the sun. Sedna will spend 150 closer to the Sun than from where we discovered it. statistically this leaves room for about 60 planets in 10,000 year orbits around the sun. all those planets are potential colonies for future colonists. The ones further away will be harder to find, but I'm sure we can eventually discover them. Colonies that far away from the Sun? Unlikely. Mankind can multiply like rabbits and it would still take at least 300 years to fill up the inner planets and moons. Sedna or its denizen's aren't likely candidates for colonization and when they are, mankind will probably have developed FTL (faster than light) propulsion and reach for planets beyond our solar system. |
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