In this simulation, you are looking at 4673 galaxies around Milky Way initially from a distance of 200 Mpc (652 million light-years)! The Milky Way plane is initially from top to bottom, perpendicular to the screen.
Each galaxy is a square dot of side 32 Kpc (104370 light-years), the diameter of Milky Way. Each galaxy contains 100 billion to 1 trillion stars!
Point at a galaxy: Name, CDS, Simbad, Aladin, NED
Mouse scroll or Pinch zoom: Move to/from centered galaxy (default Milky Way)
Left click and drag: Rotate
Right click and drag: Pan
Left click on a galaxy: Center and color it yellow
Right click on a galaxy: Select and color it green
Point at a colored galaxy (except last colored): Turn it back to white
Milky Way: Always magenta
Bottom Left: Galaxy Search by Name / Catalog Number
Bottom Right: Distance Meter