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| + | A '''planetary nebula''' was an interstellar [[gas]] cloud created by the expelled matter of a [[star]] reaching then end of its life. |
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| − | A '''planetary nebula''' is formed when an extremely hot [[star]], such as a [[red giant]] or [[supergiant]], ejects a shell of [[gas]], exposing the star's inner core. Planetary nebulae have nothing to do with [[planet]]s - they are only so called because of their resemblance to a planet. |
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| − | The {{EnterpriseNX}} surveyed a planetary nebula |
+ | The crew of the {{EnterpriseNX}} surveyed a planetary nebula in [[2151]], at which time they detected a [[Vulcan survey ship (22nd century)|Vulcan survey ship]] apparently shadowing their activities. ({{ENT|Breaking the Ice}}) |
| + | ==See also== |
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| + | * [[Nebula]] |
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[[Category:Astronomical objects]] |
[[Category:Astronomical objects]] |
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Revision as of 17:55, 30 September 2013
A planetary nebula was an interstellar gas cloud created by the expelled matter of a star reaching then end of its life.
The crew of the Enterprise NX-01 surveyed a planetary nebula in 2151, at which time they detected a Vulcan survey ship apparently shadowing their activities. (ENT: "Breaking the Ice")