Milky way galaxy

Ok. I've done that too - I was a navigator on a ship and we did it for practice. Not sure if that means you understand now or not...

 

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Since our galaxy rotate at about 250 mole / second , Is there a centripetal acting force on the solar within the galaxy ?

 

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I snipped a paragraph from a link that might help you with that question.

http://staff.washington.edu/aganse/blog/files/centrip.html

 

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As our solar system is moving we will come closer to the center of the galaxy which I assume there is a black hole or some bar like highly illuminate center . Will our solar system be brighter then is at the present position ?
Other question " let's assume our sun have not started the fusion and everything is dark , in our solar system . will the intensity of the galactic center bring light to our solar system ?

 

No we should stay roughly the same distance from the galactic center. After our 'collision' with the andromeda galaxy there is no telling where the remnats of the solar system will end up.

I am not sure what you mean. The only reason the center of the galaxy is so brighter is because there are more stars closely spaced.

The galaxy is bringing light to the earth now. The light on a moonless night is from the milky way galaxy.

 

The question is since we are moving in a spiral ara, so eventually we must pass into or close to the center , would our planet be more litt then at the present moonless light

 

Why? The solar system is in a stable orbit around the galactic center, so why would it get any closer? No, we do not pass into or close to the galactic center.

 

The way I look at the picture there is a spiral movement to the center the they sort of diverge after they move from the center . I am not talking of the movement of our solar system, but the movement of the content in the arm of the galaxy

 

Our solar system moves around in an orbital fashion passing through all arms, which in effect are "density waves."
There is no spiralling in towards the center.

 

Look at it this way: draw a spiral on a circle of paper, and draw an X somewhere. Spin the paper. Does the X move towards the middle, or not?

 

Look at this:
http://starchild.gsfc.nasa.gov/docs/StarChild/questions/question18.html

 

here is a capture I managed many years ago. over an hour exposure.
and we are looking towards the center of our galaxy.
Alex

 

Great work!

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So there is a red , darker, and a lighter lighter area , what does would mean with respect if our solar system be in either area and the elimination of the earth ?

 

How does this helps me to understand my question.
Hubble Telescope captures unprecedented view of Milky Way's 'galactic core'
http://www.ibtimes.co.uk/hubble-tel...tm_campaign=rss&utm_content=/rss/yahoous/news

 

I think my concern would be the probability of the solar system passing through a cloud of stellar gas, not moving inward towards the galactic center.

 

My basic question could there be light on the earth at some time prior the sun initiate its ilumination

 

I would probably first ask whether the Sun was active prior to the formation of the Earth. My quess is that it was burning long before our planet formed, but I don't know that to be fact.

 

My suspicion it was formed prior the sun started to burn . We have all sort of high atomic weight elements while the sun have mainly Hydrogen, beside in order to obtain such a large mass it will take a longer time to crude material to hold the mass by gravitational force.

 

No, simply because there wasn't an Earth.