Soap Bubble Nebula

The Soap Bubble Nebula is a faint spherical planetary nebula located in the northern constellation of Cygnus. It can be found at a considerable distance from Earth, though its exact light-year measurement was difficult to pin down upon discovery. It is situated near the much brighter and more famous Crescent Nebula.

The nebula was discovered by amateur astronomer Dave Jurasevich in July 2007. He spotted the incredibly faint spherical structure while taking images of the sky using a modern astrophotography setup. Its discovery highlighted the fact that even dedicated hobbyists can still find new deep-space objects.

Like other planetary nebulae, the Soap Bubble was formed when an aging, dying star expelled its outer layers of gas into the surrounding space. In this specific case, the star's stellar wind expanded symmetrically into a vast, perfect spherical shell. The gas is excited by the ultraviolet radiation of the central white dwarf, causing it to glow faintly.

No, the Soap Bubble Nebula is incredibly faint and cannot be seen visually through a standard optical telescope. It was only detected using long-exposure imaging with specialized astrophotography cameras and narrowband filters. Even in photographic images, it requires specific processing to bring out its delicate spherical structure against the background stars.