Quote:
Originally Posted by tornado33
Thanks all
Id love to know how such a nebula formed, not youre run of the mill planetary thats for sure.
I had a try of "Median Stacking" in Iris, it got rid of the satellite trail nicely.
Scott
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I think it's not only a matter of the process of formation, but also a matter of perspective. Planetary nebs usually have some sort of bipolar outflow, so you get this "hourglass" shape to the outflows. You also have a shell like structure that was created from outflowing gas when the star was in its previous giant state. The unusual shape is probably due to the outflows colliding with material in the vicinity of the star. Most likely previously shed material. But even remnant giant planets orbiting the star can influence the shape of the outflowing gas.
It also depends of perspective....the angle you're looking at the planetary nebula. You may not be seeing everything that's there.