... For a schematic figure of the structure of a star that leads to the formation of a PlanetaryNebula Click Here . ... For a schematic representation of how a planetarynebula is ionized Click Here . ...
... For a schematic figure of the structure of a star that leads to the formation of a PlanetaryNebula Click Here . ... For a schematic representation of how a planetarynebula is ionized Click Here . M61 image More about M61 . ...
... Planetary Formation is though to occur via an accretion process in a disk of gas and dust that settles into orbit about the ... excellent evidence that this process is common and that planetary formation is a natural consequence of star formation ...
... However, the delicate bubble of a planetary is a very short episode in the life of star. ... and what remains is only a cooling nucleus of the former nebula, a hot subdwarf quickly changing into a degenerate white dwarf ...