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Table 1:

Characteristics of the Cygnus OB associations and stellar clusters collectively referred to as the Cygnus complex (from Knödlseder et al. 2002).
Name Observed population Distance (pc) Age (Myr)
Cyg OB1 23 $\in$ [15, 40 $M_{\odot}$] 1905 4
Cyg OB2 120 $\in$ [20, 120 $M_{\odot}$] 1584 2.5
Cyg OB3 14 $\in$ [25, 60 $M_{\odot}$] 2187 3.5
Cyg OB7 10 $\in$ [7, 25 $M_{\odot}$] 832 3.5
Cyg OB8 6 $\in$ [20, 40 $M_{\odot}$] 2399 7.5
Cyg OB9 8 $\in$ [20, 40 $M_{\odot}$] 1259 3.5
Ber 86 11 $\in$ [7, 25 $M_{\odot}$] 1660 4
Ber 87 24 $\in$ [7, 25 $M_{\odot}$] 1905 4.5
NGC 6871 13 $\in$ [7, 25 $M_{\odot}$] 2399 5.5
NGC 6913 13 $\in$ [7, 40 $M_{\odot}$] 1820 3.5
NGC 6910 7 $\in$ [7, 25 $M_{\odot}$] 1820 4.5
NGC 6883 2 $\in$ [12, 15 $M_{\odot}$] 1820 15
IC 4996 6 $\in$ [6, 25 $M_{\odot}$] 1660 5.5


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