Celestial hemisphere:  Northern  ·  Constellation: Lacerta (Lac)  ·  Contains:  PK102-02.1
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Abell 79, DoubleStarPhotography
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Abell 79

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Abell 79, DoubleStarPhotography
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Abell 79

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Description

Abell 79 is a small  (~1 arc mintue across) and enigmatic planetary nebula located approximately 11,360 lightyears away in the constellation Lacerta.

The nebula appears to be comprise an irregular and broadened oval-shaped ring from which faint oppositely-directed lobes emerge that gradually vanish into the interstellar medium. Asymmetry is evident in the surface brightness of the lobes, with one side appearing brighter than the other. 

The faint central source (with a visual magnitude of about 17) is a relatively cool dwarf star that is incapable of producing the ionized species seen in its spectrum, suggesting that it most likey has an unseen and hot companion generating the ionization.

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