User:Lehasa/sandbox

A planetary nebula, more correctly known as a stellar remnant nebula, is an emission nebula consisting of an expanding glowing shell of ionized gas ejected during the asymptotic giant branch phase of certain types of stars late in their life.

Stellar remnant nebula, formerly known as planetary nebula. For the main article see Planetary Nebula.

"Stellar remnant nebula" is the preferred name because
 * 1) it describes the origins of the nebula more accurately,
 * 2) the name parallels that of supernova remnant nebulae
 * 3) one doesn't have to immediately explain that it has nothing to do with planets.

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