- #1
gonegahgah
- 376
- 0
The Universe is supposed to be 13.73 billion years old +/- 120 million years. (Source: http://en.wikipedia.org/wiki/Age_of_universe).
The furthest seen galaxy so far is supposed to be: "Named Abell 1835 IR1916, the newly discovered galaxy has a redshift of 10 [3] and is located about 13,230 million light-years away. It is therefore seen at a time when the Universe was merely 470 million years young, that is, barely 3 percent of its current age." (Source: http://www.universetoday.com/2004/03/01/record-for-furthest-galaxy-is-broken-again/).
I assume from this that the light has traveled 13.23 billion years to reach us from that galaxy traveling at the speed of light. In so doing it has traveled 13.23 billion light years of distance to reach us. Please correct me if this is wrong.
I further take from this that the light began on its journey when the Universe was only 470 million years old.
So I gather from this that the light began on its journey towards us 13.23 billion years ago from a distance of 13.230 billion light years away when the Universe was only 470 million years old.
This leads me to assume that the galaxy was 13.23 billion light years away from us when the light began its journey when the Universe was only 470 million years old.
If I take this as correct then it leads me to conclude that for the light to have traveled from 13.23 billion light years away the Universe was at least 13.23 billion light years across when the Universe was 470 million years old.
Well actually if we are at the centre of the Universe (which I know we are not) then it must be at least twice that size and have been at least 26 billion light years across when the Universe was just 470 million years old; as you have to measure to the opposite side too.
From this I would have to assume that this means that the Universe has to have expanded at the very least at the speed of 26 billion / 470 million x the speed of light for the first 470 million years (on average).
The result I get is that the Universe had to have expanded on average at the rate of 55x the speed of light for the first 430 million years?
That is going on a big bang theory. Is the expansion theory different to this?
The furthest seen galaxy so far is supposed to be: "Named Abell 1835 IR1916, the newly discovered galaxy has a redshift of 10 [3] and is located about 13,230 million light-years away. It is therefore seen at a time when the Universe was merely 470 million years young, that is, barely 3 percent of its current age." (Source: http://www.universetoday.com/2004/03/01/record-for-furthest-galaxy-is-broken-again/).
I assume from this that the light has traveled 13.23 billion years to reach us from that galaxy traveling at the speed of light. In so doing it has traveled 13.23 billion light years of distance to reach us. Please correct me if this is wrong.
I further take from this that the light began on its journey when the Universe was only 470 million years old.
So I gather from this that the light began on its journey towards us 13.23 billion years ago from a distance of 13.230 billion light years away when the Universe was only 470 million years old.
This leads me to assume that the galaxy was 13.23 billion light years away from us when the light began its journey when the Universe was only 470 million years old.
If I take this as correct then it leads me to conclude that for the light to have traveled from 13.23 billion light years away the Universe was at least 13.23 billion light years across when the Universe was 470 million years old.
Well actually if we are at the centre of the Universe (which I know we are not) then it must be at least twice that size and have been at least 26 billion light years across when the Universe was just 470 million years old; as you have to measure to the opposite side too.
From this I would have to assume that this means that the Universe has to have expanded at the very least at the speed of 26 billion / 470 million x the speed of light for the first 470 million years (on average).
The result I get is that the Universe had to have expanded on average at the rate of 55x the speed of light for the first 430 million years?
That is going on a big bang theory. Is the expansion theory different to this?