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Summary Of: Planetary nebula

The first planetary nebula discovered was the... Computer simulation of the formation of a planetary nebula from a star with a warped disk... Computer simulation of the formation of a planetary nebula from a star with a warped disk... The gases of the planetary nebula drift away from the central star at speeds of a few kilometers per second... A typical planetary nebula is roughly one... yet to be an established case of a planetary nebula discovered in an open cluster...

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This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Planetary nebula".