After a planetary nebula the oxygen in the middle will make it turn into a blackhole or neutron star.
Planetary nebulae can vary in color, but they are typically seen as shades of green, blue, or red. These colors are produced by different gases in the nebula interacting with light from the central star.
Planetary nebula is a misnomer because it's a nebula but it has nothing to do with planets, it's about stars.
The Cats's Eye Nebula is a perfect example of a planetary nebula. See related link for a pictorial.
A star like our sun will shed a planetary nebula after its 'death'
a nebula is classified by a planetary nebulae
Planetary nebula is a misnomer because it's totally irrelevant to planets and it has something to do with stars. The short form is "nebula".
a planetary nebula forms after a hsb o3iii
A planetary nebula consists of gas ejected from old red giant stars.
The Stingray Nebula (Hen 3-1357) is a planetary nebula. (The youngest known).
The eye of god is a Helix nebula. Close to a Planetary nebula.
Yes. There are many planetary nebulae in our galaxy.
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