Posted by Professor Cram in Constellations and Nebulae
Planetary Nebulae
The expulsion of gaseous materials from some aging stars form planetary nebulae. Here are some illustrated examples.
Chapter: Constellations and Nebulae
Tags: Ant, Ant Nebula, Astronomy, Constellations and Nebulae: Planetary Nebulae, Egg, Egg Nebula, Glowing Eye, Glowing Eye Nebula, Gravity, Hourglass, Hourglass Nebula, IC 418, Little Ghost, Little Ghost Nebula, nebula, Nebulae, NGC 3132, Planetary, planetary nebula, Retina, Retina Nebula, Ring, Ring Nebula, Southern Ring Nebula, space, Spirograph Nebula
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