I thought, [If I’m going to make anything out of this series, I should start within our own galactic neighborhood, and work my way out!]. This is one of two clouds (The Large Magellanic Cloud) that orbit the hub of our galaxy perpendicular to its rotation. Here is the link that can get into all the details for you: https://en.wikipedia.org/wiki/Large_Magellanic_Cloud
Don’t go away just yet though. This article is my own condensed version for those in a hurry to visit some other galactic neighborhood of their own making. Holding roughly 10 billion solar masses. That’s roughly one tenth the size of our entire galaxy! So this little puppy, is nothing to sneeze at!
Here is a region within The LMC that is giving rapid and successive star birth! Isn’t it beautiful? This is simply one region within the cloud of many… At 160,000 light years distant, (One light year equals 6 trillion miles!) this may very well have been a captured developing ‘bar’ galaxy! And though these vast distances are practically inconceivable to the human range of understanding, it is only one of a surrounding neighbourhood of smaller clusters…
If I’m not mistaken, the end of the blue ellipse, is the end of our galaxy’s influence… As you can see, some of these ‘dwarf galaxies are within the pull of our own ‘Creamy Way’! The 100,000 light year gauge at the top might be helpful. (Check link for details.).
Hydrogen glows red, so I’m suggesting the blue is nitrogen… There are hundreds of such star forming regions throughout the LMC. It has 400 planetary nebular, 700 open star clusters, 60 globular clusters, and hundreds of thousands of giant and super giant stars! Many more details about this fascinating neighbor, via the link; be sure and link up with The Small Magellanic Cloud while you’re there! Cheers!