The Cat’s Eye Nebula (also known as NGC 6543 and Caldwell 6) 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.
Surface temperature for the central PNN is about 80000 K, being 10000 times as luminous as the sun. The Cat’s Eye Nebula, given in some sources, lies about three thousand light-years from Earth. Wikipedia
Imaging Data:
Date: 5/29/2020
Exposure = 60s x 350 of which 220 where used
Binning = 1×1
Gain = 120
Camera Temperature= 0 deg C
Filter = STC Astro Duo-Narrowband Filter
Camera = ASI294MC PRO in Hyperstar position