NGC 5139 (ω Cen)

Distance from Sun: 5430 ± 50 pc
Galactocentric distance: 6500 ± 10 pc
V-band magnitude: 3.50 ± 0.04
Mass: 3.94 · 106 M
M/L ratio: 2.8 ± 0.1 M/L
Half-mass radius: 10.42 pc
Power-law MF slope: α = -0.80 ± 0.11


Image Credit: ESO/INAF-VST/OmegaCAM, A. Grado, L. Limatola


Observations

Cluster distance Proper motion Radial velocity
Orbit over the last 500 Myr
Velocity dispersion profile Rotation Color magnitude diagram
HST photometry Mass function MF slope

N-body Fits

Surface density Proper motions Radial velocities
Remnant fraction Mass-to-light ratio