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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 The coordinates for NGC 6709 1998 are from Donati, P., unpublished.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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