Starforming collisional ring

https://www.legacysurvey.org//viewer/?ra=15.1918&dec=-21.7253&layer=ls-dr9&zoom=15
That’s a very interesting shape.

3 Likes

That’s remarkable! It has a similar morphology to the diamond necklace planetary nebula, but indeed looks like a collisional ring with star formation. :smiley: What a great find!

that is amazing… how does that happen? do 2 galaxies collide and that’s what is left? like the hoag’s minus the middle?