Well, we can't get a full 360 degrees because of the zone of avoidance caused by the center of the milky way.
Also after a particular number of degrees it doesn't matter quite so much, the universe is isotropic enough that looking in any direction pretty much gives the same results.
I suppose we only have one point of reference to make observations from, but it feels a little strange how the graphics tend to give a false sense of us being at the center of the universe.
Would this graph essentially look the same if the observations were made elsewhere, like way over near the redshifted elliptical galaxies? Sometimes it's difficult to wrap my mind around the combination of distance and time represented at these scales.
We are the center of the Universe. Of our observable universe, at least, by definition. And the total Universe might be much bigger, potentially infinite [or even smaller than the visible universe!]. Even if finite, the Universe would have no center. It's different from a finite amount of matter forming a sphere within an infinite grid, but much like a spherical surface that has no center (the sphere does, the surface does not).
> Would this graph essentially look the same if the observations were made elsewhere
Yes, an alien in a very far away galaxy would see a similar picture. If they are within a few billion light-years, they would see a younger red-shifted Milky Way.
I think it said right on the map that it's not only essentially the same in all directions, it's pretty much the same from any vantage point, since the distance makes most of the difference in what would be seen.
Not a physicist but that's how I understand it, anywhere you go in the visible universe should have a perspective that looks more or less just like ours, as if they were at the center. We can only see so far though, so someone a billion light years from here would have a visible universe that overlaps with ours like a Venn diagram, but would be seeing things we can't. Who knows, maybe there's something really interesting they could see that we cannot, like an edge of the actual universe with nothing beyond?
> This map shows a slice of our Universe. It was created from astronomical data taken night after night over a period of 15 years using a telescope in New Mexico, USA.
So, this is the slice that the telescope was observing.
