Be 157 is the dark patch in the left of the molecular cloud, which is superimposed on the many background stars of our Milky Way . Bright blue giant stars illuminate parts of it, generating reflection nebula NGC 6727. This nebula itself contains three mayor bright parts: NGC 6726 in the center, NGC 6729 ( a variable cometary nebula) to the lower left and IC 4821 to the lower right. The reddish small nebula in the center is the Herbig-Haro object HH101, indicating the presence of a protostar. NGC 6723, a globular cluster can be seen in the upper right corner.