Table 7
GES calibrating open clusters, with basic properties from Dias et al. (2002, and latest updates), and [Fe/H] metallicity from Heiter et al. (2014), except where noted.
| Cluster | Dist | E(B−V) | Age | [Fe/H] | ⟨RV⟩ | Status | Notes |
| (pc) | (mag) | (Gyr) | (dex) | (km s-1) | |||
|
|
|||||||
| NGC 3532 | 492 | 0.028 | 0.30 | +0.00 | 4.33 | in iDR3 | RAVE |
| NGC 6705 (M11) | 1877 | 0.428 | 0.25 | +0.12 | 35.08 | in iDR3 | internal calibrator |
| NGC 2243a | 2450 | 0.060 | 4.00 | –0.48 | 59.84 | in iDR3/4 | APOGEE |
| Melotte 71 | 3154 | 0.113 | 0.24 | –0.27 | 0.55 | observed | RAVE, APOGEE |
| NGC 6253 | 1510 | 0.200 | 5.00 | +0.34 | –29.40 | observed | very metal-rich |
| NGC 2420 | 2480 | 0.040 | 2.00 | –0.05 | 73.57 | observed | APOGEE |
| NGC 2477 | 1300 | 0.240 | 0.60 | +0.07 | 7.26 | started | RAVE, GALAH |
Notes. The status column refers only to the GES calibration observations, i.e., to those OCs that were observed with the OC and MW observing setups. The last column indicates other surveys using each OC as calibrator, along with other useful annotations.
Distance, reddening, and age from Bragaglia & Tosi (2006).
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