Planetary nebula
From CityDeepSky
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Planetary nebula are caused by stars that have blown off their outer atmosphere. They gained their name due to the fact they looked like planets through early telescopes. | Planetary nebula are caused by stars that have blown off their outer atmosphere. They gained their name due to the fact they looked like planets through early telescopes. | ||
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Revision as of 19:17, 16 January 2009
Planetary nebula are caused by stars that have blown off their outer atmosphere. They gained their name due to the fact they looked like planets through early telescopes.
