Kepler to Investigate Newly Discovered Nebula 38
derGoldstein writes with an article in DigitalTrends: "An amateur astronomer recently discovered what has been confirmed to be one of the best looks yet at a planetary nebula, the last, gassy breath of a dying star. The nebula, named Kronenberger 61 after the enthusiast who discovered it, will offer insights into the future and death of our own sun."
What you are seeing (Score:5, Informative)
The pretty picture in TFA is caused by the nebula being lit up by radiation (mainly ultraviolent) from the dying star at the center. As the star dies from running out of stuff which is easy to efficiently fuse in the core, the star undergoes contractions and expansions which push the outer layers away to form a nebula. The term "planetary nebula" is a bit misleading- they are called that because they look like planetary discs if one looks for them in a small telescope. Phil Plait has a pretty good summary of what we are looking at - http://blogs.discovermagazine.com/badastronomy/2011/07/25/a-glowing-bubbly-bauble-in-space/ [discovermagazine.com]
Re:Weird (Score:4, Informative)