Click here for full resolution image NGC 6188 is an emission nebula in the constellation Ara. This image also shows the open cluster NGC 6193 (off center, near the bottom, with the bright pair HD150136 and HD150135, both O-type stars). In fact, it is the ultraviolet light coming from the stars in that cluster, that … Continue reading NGC 6188 and NGC 6193 (Caldwell 82)