Multiwavelength view of Kýklos. Left: RGB composite optical image showing the location of Kýklos radio shell (yellow circle, not to scale) relative to the Galactic plane and the Galactic centre. Nearby catalogued Wolf-Rayet stars WR 102–25, WR 103, and WR 109 are indicated as dashed white circles. Image credit: A. Mellinger, Central Michigan University (Mellinger 2009). Right: Zoomed-in view of the field of Kýklos, as seen in the SuperCOSMOS Hα survey, the VISTA VVV survey (J/Y/Z), 2MASS (J/H/K), and WISE (W1/W2/W4). The yellow dashed circle represents the size of the radio shell (80″).