Celestial hemisphere:  Northern  ·  Constellation: Draco (Dra)  ·  Contains:  IC 4677  ·  NGC 6543  ·  NGC 6552  ·  PGC 2688666  ·  PGC 2688995  ·  PGC 2689421  ·  PGC 2690715  ·  PGC 2691267  ·  PK096+29.1

Image of the day 05/01/2019

    NGC 6543 Cat's Eye Nebula, Jerry Macon
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    NGC 6543 Cat's Eye Nebula

    Image of the day 05/01/2019

      NGC 6543 Cat's Eye Nebula, Jerry Macon
      Powered byPixInsight

      NGC 6543 Cat's Eye Nebula

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      Description

      Images from the following two scopes (piggybacked) contributed to this image:

      AG12+ASI1600MM at .70 asec/pix

      TV127is+ASI183MM at .75 asec/pix.

      They were all registered to the best Ha image taken on the AG12.

      Using L (synthetic from L+ RGB) from the TV NP127is refractor effectively eliminates the spikes from the AG12.

      Imaged on nights of 3/28/2019, 3/29/2019, 3/30/2019, 4/14/2019, 4/15/2019, 4/16/2019.

      The Cat's Eye Nebula or NGC6543, is a relatively bright planetary nebula in the northern constellation of Draco, discovered by William Herschel on February 15, 1786. It was the first planetary nebula whose spectrum was investigated by the English amateur astronomer William Huggins, demonstrating that planetary nebulae were gaseous and not stellar in nature. Structurally, the object has had high-resolution images by the Hubble Space Telescope revealing knots, jets, bubbles and complex arcs, being illuminated by the central hot planetary nebula nucleus (PNN). It is a well-studied object that has been observed from radio to X-ray wavelengths.

      The Cat's Eye Nebula is structurally a very complex nebula, and the mechanism or mechanisms that have given rise to its complicated morphology are not well understood. The central bright part of the nebular consists of the inner elongated bubble (inner ellipse) filled with hot gas. It, in turn, is nested into a pair of larger spherical bubbles conjoined together along their waist. The waist is observed as the second larger ellipse lying perpendicular to the bubble with hot gas.

      (Wikipedia)

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      NGC 6543 Cat's Eye Nebula, Jerry Macon

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      Planetary Nebulae