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Table 1.
Stars observed spectroscopically in this work.
| Star | Sp T | texp (s) | S/N | Spectrograph |
|---|---|---|---|---|
| NGC 6649 | ||||
| 9 | B1 IIIe | 1000 | 90 | ISIS |
| 14 | B5 V | 1000 | 90 | ISIS |
| 19 | F5 Ib-II | 1000 | 90 | ISIS |
| 23 | B7 III | 750 | 100 | ISIS |
| 28 | B4 III | 600 | 100 | ISIS |
| 33 | B6 IV | 750 | 90 | ISIS |
| 35 | B5 V | 750 | 90 | ISIS |
| 42 B | B8 IV | 1200 | 80 | FEROS |
| 42 K | K0 Ib-II | 1200 | 80 | FEROS |
| 48 | B5 V | 1000 | 80 | ISIS |
| 49 | K1 Ib | 1800 | 70 | FEROS |
| 52 | B5 V | 750 | 90 | ISIS |
| 58 | B8 II | 600 | 120 | ISIS |
| 64 ( * ) | F7 Ib | 3000 | 90 | FEROS |
| 111 | M5 Ib | 3000 | 60 | FEROS |
| 117 | K5 Ib | 1200 | 70 | FEROS |
| NGC 6664 | ||||
| 50 | B9 IV | 300 | 120 | ISIS |
| 51 | K0 Ib | 1500 | 50 | HERMES |
| 52 | G8 Ib | 2400 | 60 | HERMES |
| 53 | K2 Ib | 1800 | 50 | HERMES |
| 54 | K4 Ib | 2000 | 50 | HERMES |
| 55 | BN2 IV | 200 | 120 | ISIS |
| 56 | B6 IIIe | 300 | 160 | ISIS |
| 59 | B2.5 V | 600 | 180 | ISIS |
| 60 | B6 IV | 450 | 120 | ISIS |
| 61 | B3 IV | 450 | 120 | ISIS |
| 62 | B6 IV | 450 | 140 | ISIS |
| 63 | B5 III | 500 | 140 | ISIS |
| 64 | B6 V | 500 | 110 | ISIS |
| 80 ( * ) | F8 Ib | 1800 | 50 | HERMES |
| 228 | B5 Ve | 1050 | 130 | ISIS |
| A | B6 IV | 600 | 140 | ISIS |
| Berkeley 55 | ||||
| 1 | K1 Ib | 4600 | 80 | IDS |
| 2 | K0 Ib | 3600 | 90 | IDS |
| 3 | G8 II | 3600 | 80 | IDS |
| 4 | K0 Ib-II | 3600 | 60 | IDS |
| 5 ( * ) | F8 Ib | 3600 | 100 | IDS |
| 6 | K4 II | 3600 | 90 | IDS |
| 7 | B4 IV | 3600 | 160 | ISIS |
| 10 | B6 IV | 3600 | 90 | ISIS |
| 11 | B6 IV | 3600 | 110 | ISIS |
| 12 | B6 IV | 4000 | 110 | ISIS |
| 17 | B5 V | 3600 | 110 | ISIS |
| 61 | M2 II | 3100 | 90 | IDS |
Notes. ( * )Cepheids V367 Sct (NGC 6649), EV Sct (NGC 6664), and Be 55 #107, respectively.
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