This is the Fine Ring Nebula, an unusual planetary nebula. Planetary nebulae form after some dying stars that have expanded into a red giant phase eject a shell of gas as they evolve into the next phase of their stellar evolution, white dwarfs. Most planetary nebulae are either spherical or elliptical in shape, or bipolar (featuring two symmetric lobes of material), but the Fine Ring Nebula looks like an almost perfectly circular ring. Astronomers believe that this unusually shaped planetary nebula was formed from a binary system. The interaction between the primary star and its orbiting companion shapes the ejected material.
The stellar object at the center of the Fine Ring Nebula does appear to be a binary system, orbiting with a period of 2.9 days. Observations suggest that the binary pair is almost perfectly face-on from our vantage point, implying that the planetary nebula’s structure is aligned in the same way. Our point of view looks down on the torus (doughnut shape) of ejected material, leading to the strikingly circular ring shape in the image.
Image Credit: ESO
And every one of these “galaxies” is suing for copyright infringement.
it just takes 10,000 years for the summons to arrive.
You beat me to it!
Bill beclowns himself again. His writings are a catalog of his stupidity.
Hey Bill, are nebulae exempt?
Mr. H. I commend you on yet another beautiful and interesting presentation of the glory of God’s universe.