Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  PGC 1950965  ·  PGC 1964507  ·  PK081-14.1
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Abell 78, Peter Goodhew
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Abell 78, Peter Goodhew
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Description

Abell 78 is an unusual planetary nebula 5,000 light years away in the constellation Cygnus. It is unusual in that after exhausting its hydrogen fuel it re-ignited by burning helium. This is the cause of the inner filaments. It is faint and small - just 2 arc minutes in diameter.

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