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Table 2.
Basic properties of the open clusters.
| Cluster | Distance (pc) |
E(B − V) (mag) |
Age (Myr) |
MTO M⊙ |
|---|---|---|---|---|
| Collinder 421 | 758 | 0.312 | 2501 | 3.5 |
| NGC 436 | 3000 | 0.460 | 80 | 5.6 |
| NGC 1342 | 665 | 0.331 | 400 | 3.0 |
| NGC 1528 | 950 | 0.250 | 350 | 3.1 |
| NGC 1662 | 437 | 0.300 | 500 | 2.7 |
| NGC 2099 | 1400 | 0.350 | 4302 | 2.9 |
| NGC 2281 | 500 | 0.065 | 610 | 2.5 |
| NGC 6709 | 1075 | 0.281 | 1603 | 4.2 |
| Stock 2 | 400 | 0.339 | 280 | 3.4 |
| Trumpler 2 | 670 | 0.321 | 80 | 5.6 |
Notes. Distances and colour excess are from Kharchenko et al. (2013). Ages are mostly from same reference unless indicated:
(3)
Donati, P., unpublished. The turn-off masses (MTO) are from PARSEC isochrones (Bressan et al. 2012) of solar metallicity and the age of the cluster.
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