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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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