Cats Eye Nebula Facts. Planetary nebulae are like snowflakes: This type of nebula extinguishes light with interstellar dust grains.
It has the designation ngc 4736 in the new general catalogue. First discovered by william herschel on february 15th 1786 this planetary nebula is a real gem of the night sky. Space and astronomy image size:
Structurally, it is one of the most complex nebulae known, with high resolution hubble space telescope.
Space and astronomy image size: The cat’s eye nebula was the first planetary nebula to be discovered with a spectroscope. An example of a planetary nebula is the cat's eye nebula. The image from hubble's advanced camera for surveys (acs) shows a bull's eye pattern of eleven or even more concentric rings, or shells, around the cat's eye.
