This infrared view (click the image to embiggen it) made by the Herschel Space Observatory of Cygnus X spans some 6×2 degrees of one of the closest, massive star forming regions in the plane of our Milky Way galaxy. The rich stellar nursery already holds the massive star cluster known as the Cygnus OB2 association. Those stars are more evident by the region cleared by their energetic winds and radiation near the bottom center of the picture. They can’t be detected by Herschel instruments operating at long infrared wavelengths, but Herschel does reveal the region’s complex filaments of cool gas and dust around the locations where new massive stars are forming. Cygnus X lies some 4500 light-years away toward the heart of the northern constellation of the Swan. This picture covers a view about 500 light-years wide.
Image Credit: ESA