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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(BV) 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.

(a)

Distance, reddening, and age from Bragaglia & Tosi (2006).

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