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HFG1 (PK 136+4.1 )
is an very old planetary nebula with a trail of shocked emission. The nebula surrounds the precataclysmic binary system V664 Cas. This image consists of over 39 hours of exposure time to reveal the details of the PN and the faint structures of surrounding gas.
HFG1 (PK 136+4.1 ) is an very old planetary nebula with a trail of shocked emission. The nebula surrounds the...