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Table 1
Main parameters of programme stars (Sestito et al. 2008).
| Cr 261 | T eff | log g | v t | [Fe/H] | V | B − V | |
| Star | K | km s-1 | mag | mag | |||
|
|
|||||||
| RGB02∗ | 4350 | 1.70 | 1.25 | +0.12 | 12.94 | 1.45 | |
| RGB05 | 4600 | 2.00 | 1.24 | +0.14 | 14.14 | 1.34 | |
| RGB06 | 4500 | 2.30 | 1.18 | +0.16 | 14.01 | 1.37 | |
| RGB07 | 4546 | 2.15 | 1.20 | +0.18 | 14.01 | 1.38 | |
| RGB09 | 4720 | 2.05 | 1.27 | +0.04 | 14.21 | 1.34 | |
| RGB10 | 4700 | 2.35 | 1.20 | +0.20 | 14.37 | 1.31 | |
| RGB11 | 4670 | 2.15 | 1.13 | +0.09 | 14.15 | 1.29 | |
|
|
|||||||
| Mel 66 | T eff | log g | v t | [Fe/H] | V | V − I | |
| Star | K | km s-1 | mag | mag | |||
|
|
|||||||
| 1346 | 4750 | 2.00 | 1.17 | −0.37 | 14.59 | 1.23 | |
| 1493 | 4770 | 2.15 | 1.20 | −0.35 | 14.68 | 1.29 | |
| 1785 | 4770 | 2.05 | 1.20 | −0.30 | 14.59 | 1.24 | |
| 1884 | 4750 | 2.45 | 1.23 | −0.30 | 14.71 | 1.19 | |
| 2218 | 4850 | 2.39 | 1.25 | −0.31 | 14.48 | 1.19 | |
Notes. RGB02 is a first ascent giant. Other stars are He-core burning stars. The identifications are taken from Sestito et al. (2008).
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