The earth moves at tens of thousands of kph around the sun. The sun moves at hundreds of km/s around the milky way. (217km/s apparently)
The galaxy is measurable but the universe in unimaginably big. Is the galaxy moving around the universe at a far higher speed than this? Could this speed be depicted as thousandths or hundredths' of C?
If yes, would there be severe time dilation between different galaxies if they were travelling at different speeds?
2006-09-08 14:10:36 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
The local group of galaxies is moving relative to the CMB at a velocity of about 18,000 km/s, or about 6% of the speed of light. This motion is towards some presumed mass dubbed "the great attractor". On top of that, the MW is orbiting the center of mass of the Local Group (essentially just falling towards the Andromeda) and the whole local group has motion towards the giant Virgo Cluster of galaxies.
Indeed there would be time dilation in the MW compared to other galaxies that are not moving in some big flow, however at 6% of the speed of light the gamma is only gonna make for a difference of about 1/6th of 1% in the passage of time; so for the 13.7 billion years of the age of the universe, maybe the MW has only experienced 13.67 billion years. That difference is smaller than our ability to estimate the age of the universe, btw.
2006-09-09 09:43:34 · answer #1 · answered by Mr. Quark 5 · 0⤊ 0⤋
I'm not sure the speed would be into the hundredths but it would be considerable. Since distance from the centre of the universe would affect the orbital speed, there would be a chance of time dilation but it would be all academic as travel between galaxies is even further away than between stars. Severity would depend on disparity.
2006-09-08 14:22:23 · answer #2 · answered by St N 7 · 0⤊ 0⤋
um, you were right about the Earth and the Sun, but the Universe part, youre wrong, the Galaxy is Inside the Universe not outside and how would you measure dialiation? If you think about it everything is dialited, were on Earth so we are moving faster than "normal" time. In my opinion, there is no such thing as normal time cause were all in different time dialiations. Dont stress over this.
2006-09-08 14:15:12 · answer #3 · answered by sur2124 4 · 1⤊ 0⤋
you will desire to examine somewhat extra. so plenty extra. Hubble's regulation and redshifts are data for an increasing universe, which in turn is data for the enormous Bang thought. Evolution is the thought explains the variety of existence on earth, and has actually no longer something to do with cosmology. you're puzzling the enormous Bang, a scientific thought which describes the earliest moments of our universe (its "creation") with Creationism, it is a crackpot fantasy held by specific religious fundamentalists. It has actually no foundation in reality in besides.
2016-12-12 05:06:40 · answer #4 · answered by ? 4 · 0⤊ 0⤋
there could be because we all saw the galaxy collisions not few of them it is in cosmic way just simple natural phenomenon.
2006-09-08 16:08:55 · answer #5 · answered by Anonymous · 0⤊ 0⤋
Don't worry be happy.
2006-09-08 14:29:52 · answer #6 · answered by joe v 3 · 0⤊ 0⤋