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Table 1
ω Centauri (NGC 5139) basic properties.
| RA, Dec (2000) | 13:26:45.76, –47:28:42.8 | Coordinates of cluster center |
| L,B | 309.10 14.97 | Galactic coordinates |
| Rsun | 5.5 kpc | Distance from sun |
| RMW | 6.4 kpc | Distance from Milky Way center |
| M V | −10.29 | Total V band magnitude |
| Mass/M⊙ | 1.1 × 106 | From luminosity assuming M / LV = 1 |
| r0 | 22.3 arcmin or 35.7 pc | Radius where a = a0 |
| re | 4.8 arcmin or 7.7 pc | Half light radius |
| rt | 45 arcmin or 72 pc | Tidal radius |
| Scale factor | 1.60 | pc/arcmin |
Notes. Coordinates are from van de Ven et al. (2006). The exact cluster center used in S09 is 13:26:46.5, –47:28:41.1, Sollima priv. comm. This minimal difference has no effects on our analysis.
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