I can't figure this one out whether it is galaxy or just nebulae of dust and gas?. Need someone to fill me in for this object.
Simulated galaxy from Illustris http://www.illustris-project.org/ the site has information about the project - there should not be nebulae
by Budgieye moderator
All the objects in Illustris are simulated galaxies, and are made of simulated stars. Stars shine by their own light. We can't see dust and gas unless something bright shines on them.
Illustris Sept 2015 (classifying simulated galaxies https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0002eys
4.4 nebula, supernova remnants, starbirth nebulae https://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=4