Sh2-140 is an H II region located on the southwestern edge of the dark nebula LDN 1204, in the Bubble of Cepheus, about 900 parsecs (2900 light years) from the Sun. [2] The star responsible for the ionization of the nebula's gases is HD 211880, a blue star on the main sequence; the temperature of the powders would be just 35 K, while its mass would be 600 M? [Text adapted from Wikipedia]