From left to right, and from top to bottom: Spitzer MIPS 24‐μm, WISE 22‐, 12‐, 4.6‐ and 3.4‐μm and DSS‐II red band images of the circular shell WS2 and its central star (marked by a circle on the DSS‐II image). The MIPS image is truncated because the MIPSGAL survey covers only a part of the shell. The orientation and the scale of the images are the same.