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Table 3

Number of stars for which mean magnitudes and indexes were computed using N individual measurements.

N V (b − y) c1 (v − b) m1 Hβ

1 38 740 38 740 14 353 24 294 24 294 33 143
2 12 688 12 705 5647 8320 8322 11 358
3 25 859 25 864 9139 15 430 15 429 22 485
>3 17 968 17 946 6985 11 336 11 335 15 961

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