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Table 2

Equatorial coordinates, photometry, spectral types, radial velocities and membership of spectroscopically observed stars in Mc70.

Star Coordinates (J2000) HST photometry Spectral νr Cluster
ID RA Dec m F160W m F222M P α type [km s-1] member?

1 16h0m27.75s −52°10′44.39′′ 8.48 7.49 –0.13 B0-2 Ia+ −107 Yes
2 16h0m26.00s −52°10′57.42′′ 8.67 7.69 –0.06 KM −64 No
3 16h0m27.56s −52°10′44.03′′ 10.49 9.63 –0.07 O9 I −73 Yes
4 16h0m27.08s −52°10′55.65′′ 9.77 8.59 –0.06 B0-2 I-II −88 Yes
5 16h0m28.80s −52°10′51.02′′ 10.37 9.64 –0.09 O6 I −118 Yes
6 16h0m28.15s −52°11′3.13′′ 8.48 7.85 –0.15 B0-2 Ia+ −92 Yes
7 16h0m26.31s −52°11′10.73′′ 10.38 9.45 –0.93 WC7 ? Yes
8 16h0m27.86s −52°10′48.95′′ 10.64 9.82 –0.32 OIfpe/WN ? Yes
9 16h0m33.77s −52°10′54.68′′ Out of the field of view G 0 No
10 16h0m32.06s −52°10′53.31′′ Out of the field of view KM −101 No
11 16h0m27.98s −52°10′51.60′′ 11.82 11.03 –0.05 O9 III −101 Yes
12 16h0m26.48s −52°10′51.20′′ 11.46 10.81 –0.06 O6.5-8 III-V −31 Runaway
13 16h0m27.40s −52°10′57.90′′ 11.96 11.37 –0.04 O7.5-8.5 III-IV −75 Yes
14 16h0m27.60s −52°10′46.66′′ 13.14 12.11 –0.44 FS CMa −98 Yes

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