- preplanetary nebula
-
A stage in stellar evolution when a star starts to shed its outer layers before coming a true planetary nebula.
Wikipedia foundation.
preplanetary nebula
Look at other dictionaries:
Nebula — Nebulae redirects here. For the supercomputer in China, see Nebulae (computer). For other uses, see Nebula (disambiguation). The Pillars of Creation from the Eagle Nebula … Wikipedia
Protoplanetary nebula — A protoplanetary nebula or preplanetary nebula Harv|Sahai|Sánchez Contreras|Morris|2005 (PPN) is an astronomical object which is at the short lived episode during a star s rapid stellar evolution between the late asymptotic giant branch (LAGB)Ref … Wikipedia
Frosty Leo Nebula — Protoplanetary nebula caption= 2003 Hubble Advanced Camera for Surveys HRC name = Frosty Leo Nebula epoch = J2000 ra = RA|09|39|53.96Harv|SIMBAD|2007] dec = DEC|+11|58|52.4 dist ly = 3.0 kly (920 pc)Harv|Davis|Smith|Gledhill|Varricatt|2005]… … Wikipedia
protoplanetary nebula — noun A stage in stellar evolution when a star starts to shed its outer layers before coming a true planetary nebula. Syn: preplanetary nebula … Wiktionary
Протопланетарная туманность — Туманность Тухлое яйцо протопланетарная туманность в созвездии Корма Протопланетарная туманность или предпланетарная туманность (ППТ) это астрон … Википедия
Asymptotic giant branch — The asymptotic giant branch is the region of the Hertzsprung Russell diagram populated by evolving low to medium mass stars. This is a period of stellar evolution undertaken by all low to intermediate mass stars (0.6 10 solar masses) late in… … Wikipedia
