Tags: Star.
A Wolf–Rayet nebula is a nebula which surrounds a Wolf–Rayet star. A subtype of a WR-nebula is the Pinwheel nebula.There are different types of WR-nebula based on their formation mechanism: HII regions ejecta-type nebulae wind-blown bubbles neutral hydrogen voids and shells (may be associated with ionized gas)Examples of this type of nebula include NGC 6888 NGC 2359 and NGC 3199.