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NGC 6543, alias Caldwell 6, magnitudine apparente 9.8, a nobis circiter 3 300 annorum luce mensorum distans, est nebula planetaria in constellatione Dracone sita, et inter nebulas multiplicissimas nobis cognitas numeratur. Mediá nebulá est stella splendida calidaque. Abhinc circiter 1000 annis hoc astrum partem exteriorem suam perdidit, e qua nebula facta est.
Nebula a Gulielmo Herschel die 15 Februarii 1786 inventa est.
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