Description:
Sharpless 2-112 (Sh2-112) is a compact emission nebula in the constellation Cygnus, located about 5,600 light-years from Earth. It glows due to ionization from the nearby O-type star BD+45 3216, a massive, hot star that emits intense ultraviolet radiation.
The nebula has a distinctive blister-like shape, with a bright core and surrounding dust lanes, and is part of a larger molecular cloud complex that’s actively forming stars. Over 500 young stars have been identified in and around the region.
Description:
Sh2-115 is a large emission nebula in the constellation Cygnus, located about 7,500 light-years from Earth near the bright star Deneb. Spanning nearly 100 light-years, it glows red from ionized hydrogen gas energized by young, massive stars in the nearby cluster Berkeley 90. The nebula has a chaotic, filamentary structure and is part of a much larger molecular cloud complex.
Nearby is Sh2-116 (also called Abell 71), a small round nebula once thought to be a planetary nebula but now believed to be part of the same star-forming region.