"The Crab" is a nebula.
The crab nebula.
protostar or nebula
The nebula you are referring to is likely the Swan Nebula, also known as the Omega Nebula. It is a famous emission nebula located in the constellation Sagittarius. The name "Swan Nebula" comes from its resemblance to a swan when viewed in certain images.
Galaxy
The Nebula Theory is also known as the Solar Nebula Theory. It is a widely accepted model for the formation of our solar system.
The Horsehead Nebula can be found in the constellation Orion. Its name comes from its resemblance to a horse's head. The Horsehead Nebula was first discovered by Williamina Fleming in 1888.
Well, darling, a nebula is a big ol' cloud of dust and gas in space, while the Crab Nebula is a specific nebula located in the constellation Taurus. So basically, it's like saying a nebula is a generic term for a cloud in space, while the Crab Nebula is a specific cloud that got its own fancy name. Hope that clears things up for ya, sugar!
The Dumbbell Nebula, also known as Messier 27, is a planetary nebula located in the constellation Vulpecula. It gets its name from its shape resembling a dumbbell. It is a striking object in the night sky and is a popular target for amateur astronomers.
In astronomy - there does not appear to be a nebula with that name.Other options could be:The Green Leopard Plague which won the nebula awards.A fictional wallpaper made with photoshop and used in Mac OSX
Nebula.
Incillia (a.k.a. the Red Nebula planet).
Nebula