This structure, also
referred to in catalogs as Sh2-240, covers an area of nearly 3 degrees on the
sky (the equivalent of 6 full moons). The mentioned field corresponds to an
actual diameter of about 150 light-years, since the debris cloud is at an estimated
distance of 3000 years-light. The bright star that dominates the right side of
the image is El Nath (Beta Tauri), located toward the boundary between the
constellations of Bull (Taurus in Latin) and the Charioteer (Auriga in Latin),
on a point of land almost exactly sky opposite to the galactic center.
