Planetary-nebula Sentence Examples

planetary-nebula
  • Nebular chemistry was initiated by the same investigator when, on the 29th of August 1864, he observed the bright-line spectrum of a planetary nebula in Draco.

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  • The expended gas frequently forms an impressive display called a planetary nebula that fades gradually over thousand of years.

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  • Our own Sun may eject a similar planetary nebula some 6 billion years from now.

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  • It continues to lose mass via a stellar wind as it dies, forming a planetary nebula.

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