The above image is a stunning false-colour picture of 'Cat's Eye Nebula' with a halo around it. The center white portion of the image is the Cat's Eye Nebula surrounded by a faint halo of gaseous material. Cat's Eye is one of the most famous Planetary Nebula which is believed to be around 1000 yrs old. The halo is said to be 3 light years across. Only recently the halos around many planetary nebulae have been discovered including this one.
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