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Nebula

Cat's Eye Nebula

Planetary nebula · C6 · NGC 6543

Cat's Eye Nebula

Planetary nebula in Draco

Photo: Credit Line and Copyright Adam Block/Mount Lemmon SkyCenter/University of Arizona · CC BY-SA 3.0 us · Wikimedia Commons

The Cat's Eye Nebula is a 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. At the centre of the Cat's Eye Nebula is a dying Wolf–Rayet star, the sort of which can be seen in the Webb Telescope's image of WR 124. The Cat's Eye Nebula's central star shines at magnitude +11.4. Hubble Space Telescope images show a sort of dart board pattern of concentric rings emanating outwards from the centre.

Description from Wikipedia (CC BY-SA 4.0).

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Key facts

Distance

~3,000 light-years

Apparent mag.

+9

Apparent size

0.9′

Best seen with

Binoculars

Catalogue

C6 · NGC 6543

Did you know

In DracoRead more on Wikipedia

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