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Table 6.
Cluster parameters.
| Parameter | Units | NGC 2546A | NGC 2546B |
|---|---|---|---|
| Spectroscopic parameters | |||
| RV | km s−1 | 16.5 ± 0.5 | 26.3 ± 0.6 |
| E(B − V)sp | mag | 0.148 ± 0.013 | – |
| (V0 − MV)sp | mag | 9.74 ± 0.21 | – |
| Astrometric parameters | |||
| α(J2000) | deg | 123.12 ± 0.03 | 122.89 ± 0.01 |
| δ(J2000) | deg | −37.62 ± 0.03 | −37.40 ± 0.01 |
| μα | mas yr−1 | −3.76 ± 0.04 | −4.97 ± 0.07 |
| μδ | mas yr−1 | 3.89 ± 0.04 | 4.54 ± 0.07 |
| σμ | mas yr−1 | 0.15 | 0.18 |
| Parallax | mas | 1.06 ± 0.03 | 0.72 ± 0.05 |
| σπ | mas | 0.06 | 0.06 |
| (m − M)0 | mag | 9.87 ± 0.06 | 10.71 ± 0.14 |
| R0.5 | deg | 0.47 ± 0.05 | 0.065 ± 0.10 |
| R0.5 | pc | 7.9 ± 0.8 | 1.6 ± 0.3 |
| NG < 18 | 470 | 80 | |
| Photometric parameters | |||
| E(B − V) | mag | 0.142 ± 0.005 | 0.294 ± 0.003 |
| E(GBP − GBP) | mag | 0.22 ± 0.06 | 0.47 ± 0.04 |
| G − MG | mag | 10.24 ± 0.22 | 11.63 (a) |
| Age | Myr | 180 ± 50 | < 10 |
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