Comparison of the VGPS radio continuum at 1420 MHz/21 cm (blue) with the 8 μm (green) and 24 μm (red) emission. Left: 1420 MHz and 8 μm emission. The radio continuum follows the bubble outline and fills part of its interior. Right: same as left with added 24 μm emission. Inside the bubble, the radio continuum is well correlated with the 24 μm emission, except for the eastern part, where the 24 μm emission is absent and only the radio continuum is observed.