M 16By astrored / November 6, 2023 M15 . . Index . . M17 Messier 16 M 16 (NGC 6611) Open Cluster in Serpens. associated with the Eagle Nebula RA=18 18.8, Dec=-13 47. 6.4 mag, dist=7 kly. M16 page; DSSM page Hartmut Frommert ([email protected]) Christine Kronberg ([email protected]) Last Modification: 7 Apr 1998, 22:14 MET