Open Access
Table A.2
Target coordinates (Gaia Collaboration 2016, 2021) and photometric data for NGC 6397 (Anthony-Twarog & Twarog 2000). The seeing is the average value obtained by the DIMM), corrected to zenith.
| star | α2000 | δ2000 | V | b − y | start | exposure | average | |
|---|---|---|---|---|---|---|---|---|
| time | airmass | seeing | ||||||
| [h:m:s] | [°:′ :″] | [mag] | [mag] | [UT] | [sec] | |||
| T160 | 17:40:55.005 | −53:40:07.19 | 13.719±0.003 | +0.110±0.004 | 2002-04-25T07:20:58 | 1500 | 1.15 | 1.23 |
| T164 | 17:40:43.912 | −53:31:00.85 | 13.742±0.003 | +0.105±0.004 | 2002-04-25T07:50:55 | 1680 | 1.14 | 1.10 |
| T166 | 17:40:34.642 | −53:28:49.36 | 13.753±0.004 | +0.098±0.004 | 2002-04-25T06:14:16 | 1680 | 1.21 | 1.37 |
| T170 | 17:41:12.138 | −53:38:29.34 | 13.795±0.002 | +0.121 ±0.003 | 2002-04-28T05:47:15 | 1800 | 1.23 | 1.88 |
| 2002-05-10T07:27:01 | 1800 | 1.16 | 1.43 | |||||
| T172 | 17:40:02.178 | −53:39:43.87 | 13.796±0.002 | +0.112±0.003 | 2002-04-25T03:50:50 | 1800 | 1.65 | — |
| T174 | 17:40:39.477 | −53:36:44.80 | 13.818±0.003 | +0.113±0.002 | 2002-04-25T06:46:31 | 1800 | 1.18 | 1.24 |
| T179 | 17:40:55.468 | −53:37:12.11 | 13.842±0.003 | +0.111±0.004 | 2002-04-25T09:08:02 | 1800 | 1.19 | 1.21 |
| T183 | 17:40:20.065 | −53:41:43.27 | 13.881±0.002 | +0.099±0.004 | 2002-04-25T05:02:40 | 1860 | 1.37 | — |
| T185 | 17:40:26.707 | −53:37:52.69 | 13.901±0.003 | +0.114±0.004 | 2002-04-25T05:39:04 | 1860 | 1.26 | 1.30 |
| T186 | 17:40:19.822 | −53:36:30.38 | 13.905±0.004 | +0.110±0.004 | 2002-04-25T04:27:10 | 1860 | 1.49 | — |
| T191 | 17:40:56.029 | −53:35:07.66 | 13.954±0.002 | +0.124±0.003 | 2002-04-14T08:49:20 | 2100 | 1.14 | 0.94 |
| T193 | 17:40:57.467 | −53:35:33.07 | 13.963±0.002 | +0.112±0.002 | 2002-04-25T08:23:17 | 2100 | 1.16 | 1.10 |
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