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K 1-22

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description K 1-22 Overview

K 1-22 is a planetary nebula notable for its unusual, highly asymmetric morphology, cataloged by astronomer Lukasz Kohoutek in his 1963 survey of compact planetary nebulae.

help K 1-22 FAQ

What is K 1-22 also called?

K 1-22 is also cataloged as ESO 378-1 and is sometimes called the Southern Owl Nebula. SIMBAD identifies ESO 378-1 as planetary nebula K 1-22. ([SIMBAD record](https://simbad.u-strasbg.fr/simbad/sim-id?Ident=ESO+378-1))

Where is K 1-22 in the sky?

It lies in the constellation Hydra, roughly south of the star HD 99463. Its low surface brightness makes it much harder to see than brighter planetary nebulae such as the Ring Nebula.

Why is K 1-22 difficult to observe visually?

Observers describe K 1-22 as a large, faint, low-surface-brightness object rather than a bright compact disk. An O III filter and averted vision can help reveal it through a sufficiently large telescope.

What does the K in K 1-22 mean?

The K designation comes from the Kohoutek planetary-nebula catalog associated with astronomer Luboš Kohoutek. It is a catalog label for an ionized stellar shell, not evidence that the object contains a planet.

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