Yes, I know that there have probably been tons of this type of thread already, but if you allow me to express my enthusiasm for a bit...
I would nominate Mynoaw AA-A h26 as one of the most unusual and interesting systems in the galaxy. Not only does it have four black holes (which I think is the record), but it also has a white dwarf and a neutron star, besides a bunch of other stars. Not only that, but the neutron star is ringed, which in itself is extremely rare. And the ring rotates so fast that when you have dropped onto it, you can see the starry background rotate in real time.
What are other very unusual and interesting systems?
I would nominate Mynoaw AA-A h26 as one of the most unusual and interesting systems in the galaxy. Not only does it have four black holes (which I think is the record), but it also has a white dwarf and a neutron star, besides a bunch of other stars. Not only that, but the neutron star is ringed, which in itself is extremely rare. And the ring rotates so fast that when you have dropped onto it, you can see the starry background rotate in real time.
What are other very unusual and interesting systems?