XI[1]
16h27m 14.1s[2]
–26° 01′ 29″[2]
+9.63[3]
Apparent dimensions (V)
1.8′[1]
Physical characteristics
See also: Globular cluster, List of globular clusters
NGC 6144 is a globular cluster in the constellation Scorpius, located almost exactly 1° away from its brighter counterpart globular cluster Messier 4.[5] It is relatively close to and is partially obscured by the Rho Ophiuchi cloud complex.[4] The cluster has a very low core stellar density for a globular cluster and harbors a handful of X-ray radiation sources.[6]