Open Access
Table 1
ESPRESSO observations log of HD 189733.
| Night # | Date | Telescope | Mode | Spectra | Texp[s] | Airmass | Seeing a | S/N at 550 nm a |
|---|---|---|---|---|---|---|---|---|
| Night 1 | 2021-08-10 | VLT-UT1 | HR21 | 41 (18 in, 22 out, 1 discarded) | 300 | 2.1-1.5-1.6 | 0.5-0.9 | 129-203 |
| Night 2 | 2021-08-30 | VLT-UT1 | HR21 | 43 (18 in, 25 out) | 300 | 1.7-1.5-2.0 | 0.7-1.7 | 107-194 |
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