It takes 225 MILLION Earth years for the sun to orbit the center of the Milky Way once.
The diameter of the Milky Way galaxy is about 100,000 light-years. If the Sun and Earth were at the edge of the disk, we would still be within the galaxy's boundaries, so the diameter would remain around 100,000 light-years.
It's doubtful if a civilization could still exist within an elliptical galaxy due to the age of the stars. If they could, then the sky would have a slight red tinge, nothing like the Milky Way.
That would be a galaxy. Our solar system is part of the Milky Way galaxy, which contains billions of stars, planets, and other celestial objects.
If you were to get close to the Milky Way galaxy, you would continue to see more stars and gas clouds as you approach it. Ultimately, you would not be in any danger as the Milky Way is a collection of stars, gas, and dust held together by gravity.
The Milky Way galaxy is approximately 100,000 light-years in diameter. One light-year is equivalent to about 63,240 astronomical units (AU), so the distance across the Milky Way galaxy would be around 6.32 million AU.
Our sun is about 25,000 light years from the centre of the milky way.. It's about half way out from the centre of our galaxy.. So our galaxy from end to end would be 100,000 light years across..
Not long at all - as you/we are already in it. About 25,000 light years from the centre.
That would be the Milky Way Galaxy.
A spiral galaxy
I believe that would be M31.
We are in the Milky Way galaxy.
its a spiral galaxy and the earth is so far the only planet in the milky way where we know we can live
The question cannot be answered because you need a fixed reference point against which to measure the speed (or velocity) of the earth through the universe. What would this be? The sun (or centre of the solar system)? But that travels round the centre of the Milky Way Galaxy. The centre of Milky Way? But that travels around the centre of our local cluster. The centre of our local cluster? No, because that travels round ... and so on.
The diameter of the Milky Way galaxy is about 100,000 light-years. If the Sun and Earth were at the edge of the disk, we would still be within the galaxy's boundaries, so the diameter would remain around 100,000 light-years.
In Kannada, we would say:Haalina Marghada Taaragana
Absolutely nothing - in cosmic terms. The Milky Way is a dynamic entity. It changes size and shape very slowly - compared to us mere mortals. It's takes us about 230 million years to go around the galactic centre just once. So things do change, but very slowly. In about 5 billion years our Galaxy WILL get bigger when the Andromeda Galaxy "merges" with the Milky Way Galaxy.
I believe that would be M31.