NGC 104 (47 Tuc)

Distance from Sun: 4520 ± 30 pc
Galactocentric distance: 7520 ± 10 pc
V-band magnitude: 4.08 ± 0.05
Mass: 8.53 · 105 M
M/L ratio: 1.9 ± 0.1 M/L
Half-mass radius: 6.44 pc
Power-law MF slope: α = -0.65 ± 0.12


Image Credit: Bernhard Hubl, http://www.astrophoton.com/


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