# NGC 6144

NGC 6144 is a globular cluster in the constellation Scorpius, located almost exactly 1° away from the much brighter globular cluster Messier 4.[5] It is close by and is partially obscured by Rho Ophiuchi cloud complex.[4] The cluster has a very low core stellar density for a globular cluster and harbors a few X-ray radiation sources.[6]

NGC 6144
NGC 6144, imaged by Hubble
Credit: NASA/ESA
Observation data (J2000 epoch)
ClassXI[1]
ConstellationScorpius
Right ascension16h 27m 14.1s[2]
Declination–26° 01′ 29″[2]
Apparent magnitude (V)+9.63[3]
Apparent dimensions (V)1′.8[1]
Physical characteristics
Metallicity${\displaystyle {\begin{smallmatrix}\left[{\ce {Fe}}/{\ce {H}}\right]\end{smallmatrix}}}$ = -1.81±0.12[4] dex