Table 1
Observing logs and programme star properties.
| Cluster | Star | α2000 | δ2000 | B | V | R | Ia | KS | nexp |
|
S/Ntot | |
| (h) | (deg) | (mag) | (mag) | (mag) | (mag) | (mag) | (s) | |||||
|
|
||||||||||||
| Be 32b | 0456 | 06:58:08.2 | +06:24:19.6 | 14.76 | 13.67 | — | 12.53 | 11.03 | 7 | 18 900 | 60 | |
| 1948 | 06:58:04.2 | +06:27:17.1 | 14.50 | 13.37 | — | 12.20 | 10.68 | 6 | 16 200 | 70 | ||
| NGC 752c | 001 | 01:55:12.6 | +37:50:14.6 | 10.47 | 9.51 | — | — | 7.23 | 4 | 2400 | 160 | |
| 208 | 01:57:37.6 | +37:39:38.1 | 10.04 | 8.97 | — | — | 6.41 | 4 | 2400 | 180 | ||
| 213 | 01:57:38.9 | +37:46:12.5 | 10.08 | 9.07 | — | — | 6.68 | 3 | 1800 | 80 | ||
| 311 | 01:58:52.9 | +37:48:57.3 | 10.11 | 9.07 | — | — | 6.64 | 4 | 2400 | 100 | ||
| Hyadesd | 028 (γ tau) | 04:19:47.6 | +15:37:39.5 | 4.64 | 3.65 | 2.92 | 2.45 | 1.52 | 2 | 120 | 560 | |
| (Mel 25) | 041 (δ tau) | 04:22:56.1 | +17:32:33.0 | 4.75 | 3.76 | 3.03 | 2.56 | 1.64 | 3 | 180 | 450 | |
| 070 (ϵ tau) | 04:28:37.0 | +19:10:49.5 | 4.55 | 3.54 | 2.81 | 2.31 | 1.42 | 3 | 180 | 270 | ||
| Praesepee | 212 | 08:39:50.7 | +19:32:27.0 | 7.53 | 6.58 | 5.87 | 5.38 | 4.39 | 4 | 240 | 165 | |
| (NGC 2632) | 253 | 08:40:06.4 | +20:00:28.1 | 7.35 | 6.38 | 5.67 | 5.20 | 4.20 | 4 | 240 | 215 | |
| (M 44) | 283 | 08:40:22.1 | +19:40:11.9 | 7.42 | 6.41 | 5.68 | 5.21 | 4.18 | 2 | 120 | 150 | |
Notes.
All I magnitudes are in the Johnson system (IJ) with the exception of those of the Be 32 stars which are in the Cousins system (IC).
Star names from Richtler & Sagar (2001); Coordinates, B, V & IC magnitudes from D’Orazi et al. (2006); KS magnitudes from 2MASS.
Star names from Heinemann (1926); Coordinates from Høg et al. (2000); B and V magnitudes from Jennens & Helfer (1975); KS magnitudes from 2MASS.
Star names from van Bueren (1952); Coordinates from Perryman et al. (1997); B, V, R and IJ magnitudes from Johnson et al. (1966); KS magnitudes from 2MASS.
Star names from Klein Wassink (1927); Coordinates from Perryman et al. (1997); B, V and R magnitudes from Coleman (1982); IJ magnitudes from Mendoza (1967); Johnson et al. (1966), KS magnitudes from 2MASS.
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