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Table 5

OM light curve of Cyg OB2 #27 (=MT91 696).

JD-2 450 000 AB-magnitude

UVW1
3308.5052 ± 0.0184 16.38 ± 0.01
3318.4781 ± 0.0242 16.41 ± 0.01
3328.4983 ± 0.0289 16.55 ± 0.01

UVM2
3308.6205 ± 0.0463 19.86 ± 0.11
3318.6049 ± 0.0521 19.63 ± 0.08
3328.5934 ± 0.0579 20.27 ± 0.13
3338.5573 ± 0.0473 19.78 ± 0.08

Notes. The quoted uncertainty in the time corresponds to half of the exposure time.

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