Butterfly Nebula changes (2009 to 2020) (IMAGE)

University of Washington

Butterfly Nebula changes (2009 to 2020)

Caption

Structural changes within the Butterfly Nebula between 2009 and 2020. Various features have moved from the black regions into the white ones during the 11-year interval. The image reveals the surprisingly complex growth patterns caused by multiple ejections from the nebula’s unseen central star in the past two millennia.

Credit

Lars Borchert and Bruce Balick/University of Washington

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