e/Planetary nebula luminosity function

Information
has gloss	eng: Planetary nebula luminosity function (PNLF) is a secondary It works well for both spiral and elliptical galaxies despite their completely different stellar populations and is part of the Extragalactic Distance Scale.
lexicalization	eng: Planetary nebula luminosity function
instance of	(noun) a nebula that was once thought to be a star with its planets but is now thought to be a very hot star surrounded by an expanding envelope of ionized gases that emit a fluorescent glow because of intense radiation from the star planetary nebula