Blueish L shape


Welcome! That is a galaxy - they can come in a lot of weird and wonderful shapes. I think this is an (imaginatively called) irregular galaxy.

Not very much on it but if you would like to poke through any specifics they can be found here.

Oh thanks! First time seeing one like this that’s not merging with another etc.

No problem! Irregular galaxies are usually formed after a “normal” galaxy is acted on by an uneven gravitational force so this one could very much be the result of a merger, but a merger where we can no longer easily distinguish the initial galaxies.