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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 ...
Spiral Planetary Nebula: NGC 5189: 1835 2.6 (approx.) 9.5 Musca: Mz 1: 1922 3.4 ± 0.5 ... Cat's Eye Nebula: NGC 6543: 1786 3.3 ± 0.9 9.8B Draco: Little Ghost Nebula ...
Bow-Tie Nebula: Planetary Nebula: 3.5 Cepheus: 11 C3 NGC 4236 Barred Spiral Galaxy: 7,000 Draco: 9.7 C4 NGC 7023: Iris Nebula: Open Cluster and Nebula: 1.4 Cepheus: 7 C5 IC 342: Hidden Galaxy [7] Spiral Galaxy: 10,000 Camelopardalis: 9 C6 NGC 6543: Cat's Eye Nebula: Planetary Nebula: 3 Draco: 9 C7 NGC 2403 Spiral Galaxy: 14,000 Camelopardalis ...
The Herschel 400 catalogue is a subset of William Herschel's original Catalogue of Nebulae and Clusters of Stars, selected by Brenda F. Guzman (Branchett), Lydel Guzman, Paul Jones, James Morris, Peggy Taylor and Sara Saey of the Ancient City Astronomy Club in St. Augustine, Florida, United States c. 1980.
On August 29, 1864, Huggins was the first to analyze the spectrum of a planetary nebula when he observed Cat's Eye Nebula. [10] His observations of stars had shown that their spectra consisted of a continuum of radiation with many dark lines superimposed.
Pages in category "Planetary nebulae" The following 129 pages are in this category, out of 129 total. ... Cat's Eye Nebula; Cometary knot; D. Dumbbell Nebula; E.
The outer parts of the nebula contain comet-like filaments, up to a light year in length. File:NGC 6543 outer halo.jpg The Cat's Eye Nebula is a planetary nebula, formed when a star like the sun ejected its outer layers at the end of its life.
Cat's Eye Nebula (NGC 6543) Cat's Eye Nebula (NGC 6543) Nebulium was a proposed element found in astronomical observation of a nebula by William Huggins in 1864. The strong green emission lines of the Cat's Eye Nebula, discovered using spectroscopy, led to the postulation that an as yet unknown element was responsible for this emission.