Table 1
Open cluster basic data observed with FLAMES sorted in terms of increasing NGC number.
| Cluster | Alternative | Location | (l,b) | Dist | Exp time | Median S/N | Stars | Scales | Galactic scales |
| name | (deg) | (kpc) | (s) | at Ca ii K | used | probed (arcmin) | probed (pc) | ||
|
|
|||||||||
| NGC 330 | Kron 35 | SMC | 302.42, –44.66 | 61 | 13 650 | 30 | 111 | 0.2–27.4 | 0.07–9.1 |
| NGC 346 | Kron 39 | SMC | 302.14, –44.94 | 61 | 6825 | 60 | 110 | 0.3–20.7 | 0.12– 8.9 |
| NGC 1761 | LH 09 | LMC | 277.23, –36.07 | 51 | 13 650 | 135 | 111 | 0.2–22.3 | 0.09–8.8 |
| NGC 2004 | KMHK 991 | LMC | 277.45, –32.63 | 51 | 13 650 | 95 | 111 | 0.2–20.0 | 0.05–4.6 |
| NGC 3293 | Collinder 224 | Galaxy | 285.85, +0.07 | 2.327 | 795 | 70 | 90 | 0.2–22.3 | 0.14–15.1 |
| NGC 4755 | The Jewel Box | Galaxy | 303.21, +2.50 | 1.976 | 795 | 80 | 81 | 0.2–21.8 | 0.11–12.5 |
| NGC 6611 | M 16 | Galaxy | 16.98, +0.80 | 1.749 | 750 | 50 | 43 | 0.2–23.5 | 0.10–12.0 |
Notes. Distances to Milky Way clusters are from the WEBDA database with the distances to the LMC and SMC being taken from Keller & Wood (2006). The last column corresponds to the minimum and maximum transverse star-star separation at the distance of the cluster. For the Galactic scales probed by the Magellanic objects we have assumed that the scaleheight of the Galaxy is ~800 pc (Smoker et al. 2003). Note that the Galactic scales are upper limits, as the ISM absorption can arise anywhere in the line of sight between the Earth and the cluster in question.
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