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Table 1.
Log book of the new spectroscopic observations of red giants in open clusters.
| Star | RA h:m:s (J2000) |
Dec d:m:s (J2000) |
V mag |
Exp. time s |
RV km s−1 |
S/N @6700 Å |
Date of obs. (YYYY-MM-DD) |
|---|---|---|---|---|---|---|---|
| Cr 421 466 | 20:23:19.93 | +41:41:46.23 | 10.231 | 3 × 1000 | +1.8 | 210 | 2016-09-07 |
| Cr 421 529 | 20:23:28.73 | +41:41:23.91 | 10.681 | 3 × 1500 | +3.0 | 290 | 2016-09-06 |
| Cr 421 566 | 20:23:36.15 | +41:44:01.27 | 10.831 | 3 × 2400 | +1.8 | 220 | 2016-09-05 |
| NGC 436 482 | 01:15:57.74 | +58:47:57.30 | 11.072 | 3 × 2000 | −73.6 | 150 | 2016-09-07 |
| NGC 1342 4 | 03:32:11.23 | +37:22:55.45 | 9.333 | 3 × 500 | −10.5 | 100 | 2016-09-07 |
| NGC 1342 7 | 03:32:02.47 | +37:21:21.58 | 10.133 | 3 × 1000 | −10.3 | 190 | 2016-09-07 |
| NGC 1528 42 | 04:15:19.71 | +51:14:23.28 | 10.044 | 3 × 1000 | −10.6 | 170 | 2016-09-07 |
| NGC 1528 1009 | 04:14:55.21 | +51:10:42.29 | 10.004 | 3 × 500 | −9.5 | 110 | 2016-09-08 |
| *NGC 1528 4876 | 04:14:33.55 | +51:28:05.61 | 9.674 | 4 × 400 | +14.8 | 100 | 2016-09-08 |
| NGC 1662 1 | 04:48:29.51 | +10:55:48.27 | 8.343 | 3 × 300 | −13.5 | 190 | 2016-09-07 |
| NGC 1662 2 | 04:48:32.08 | +10:57:59.02 | 8.833 | 3 × 200 | −12.9 | 110 | 2016-09-06 |
| NGC 2099 1898 | 05:52:12.51 | +32:38:42.80 | 11.195 | 2 × 2000 | +9.0 | 150 | 2016-09-08 |
| NGC 2099 2520 | 05:52:16.54 | +32:34:45.90 | 11.125 | 2 × 1800 | +8.1 | 170 | 2016-09-08 |
| NGC 2281 55 | 06:48:15.10 | +41:04:22.20 | 8.986 | 3 × 450 | +19.6 | 120 | 2016-09-07 |
| NGC 2281 63 | 06:48:21.73 | +41:18:08.43 | 7.326 | 2 × 200 | +19.2 | 240 | 2016-09-07 |
| *NGC 2281 74 | 06:48:27.97 | +41:04:50.80 | 9.526 | 3 × 500 | −5.9 | 130 | 2016-09-08 |
| NGC 6709 208 | 18:51:31.80 | +10:18:49.87 | 9.137 | 3 × 400 | −10.4 | 120 | 2016-09-05 |
| NGC 6709 1998 | 18:51:11.20 | +10:18:18.03 | 8.957 | 3 × 400 | −20.8 | 160 | 2016-09-05 |
| *Stock 2 160 | 02:19:41.53 | +60:00:46.99 | 7.208 | 3 × 200 | +3.3 | 250 | 2016-09-06 |
| Trumpler 2 1 | 02:36:52.80 | +55:54:55.49 | 7.469 | 3 × 200 | −4.2 | 210 | 2016-09-06 |
Notes.The V magnitudes are from
The RVs are heliocentric and determined from our spectra. The coordinates for NGC 6709 1998 are from Donati, P., unpublished. (*) Stars marked with an asterisk were found to be non-members of the clusters (Sect. 2).
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