astronomicalwonders: The Cat’s Eye Nebula - NGC 6543 The Cat’s Eye Nebula or NGC 6543, is a planetar
astronomicalwonders: The Cat’s Eye Nebula - NGC 6543 The Cat’s Eye Nebula or NGC 6543, is a planetary nebula in the constellation of Draco. Structurally, it is one of the most complex nebulae known, with high-resolution Hubble Space Telescope observations revealing remarkable structures such as knots, jets, bubbles and sinewy arc-like features. In the center of the Cat’s Eye there is a bright and hot star; around 1000 years ago this star lost its outer envelope, producing the nebula. Credit: NASA/Hubble -- source link