Image Credit & Copyright: T.A. Rector (University of Alaska Anchorage) and H. Schweiker (WIYN and NOAO/AURA/NSF)
This image is of planetary nebula HDW-3 and it’s a highly evolved, ancient planetary nebula in the constellation Perseus. The faint appearance is due to the vast expansion that this object has been undergoing for an extremely long, yet unknown amount of time. The portion of its shell that almost seems braided is a result of the nebula interacting with the material in the surrounding interstellar medium as it moves through it. The star that died to create this object isn’t that bright orange star near center but instead it’s the faded blue star (white dwarf) just to the right and down a bit from that bright star.
What are planetary nebulae? Read below or hit the link for even more info! http://danspace77.com/what-are-planetary-nebulae/
As for the objects themselves they are very low density and…
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