Tuesday, Dec 3, 2024

Journeying through the Cygnus constellation, this region shows striking ondulations of interstellar gas, primarily highlighted in H Alpha and SII. These wave-like structures trace the influence of shock waves and stellar winds propagating through the surrounding molecular clouds. At the center of the frame is Sh2-115, an emission nebula glowing with a mix of ionized gases, notably OIII emissions from hot, young stars. These stars are driving the ionization and are a key force behind the turbulence observed in the surrounding medium. Two other interesting objects are the planetary nebula PK 086+05.1 on the bottom left corner, and PK 085+04.1 which was described as an HII region in 1991 but remains catalogued as a PN in most online databases. I have been imaging this object during September and October to finally add 51 hours of data from my observatory in Àger, Catalonia under s B3 sky.