The Cat’s Eye Nebula, also known as NGC 6543 or Caldwell 6, is a planetary nebula located in Draco constellation and one of the most complex nebulae known. High-resolution observations with Hubble Space Telescope revealed outstanding structures such as knots, jets, bubbles and strong arc-like features; still, the mechanisms behind its complicated morphology are yet to …
Monthly Archive
for: ‘May, 2011’
Colliding Galaxies in Stephan’s Quintet
Stephan’s Quintet is located in Pegasus constellation, being a visual grouping of five gallaxies of which four form the first compact galaxy group ever discovered. It was dicovered by Édouard Stephan in 1877 at Marseilles Observatory, becoming the most studied of all compact galaxies groups. The brightest member of the grouping is NGC 7320 that is shown …