An Updated Distance to the Cygnus Loop based on Gaia Early DR3

We present a revised distance to the Cygnus Loop supernova remnant of \(725\pm15\) pc based on Gaia Early Data Release 3 parallax measurements (EDR3) for several stars previously found to be located either inside or behind the supernova based on the presence of high-velocity absorption lines in their spectra. This revised distance estimate and error means the Cygnus Loop remnant now has an estimated distance uncertainty comparable to that of its \(\simeq\)18 pc radius.