Table 1.
Summary of the data set used.
| Star | RA (J2000) [h:m:s] | Dec (J2000) [d:am:as] | G [mag] | Pr [d] | Instrument | Baseline [BJD-2.4M] | Nobs |
|---|---|---|---|---|---|---|---|
| δ Cep | 22:29:10 | +58:24:54 | 3.8 | 5.366267 | HERMES | 55816–58554 | 263 |
| BG Cru | 12:31:40 | –59:25:26 | 5.3 | 3.342540 | C14 | 57155–60536 | 508 |
| X Sgr | 17:47:33 | –27:49:50 | 4.3 | 7.012805 | C14 | 57153–60158 | 185 |
| Polaris | 02:31:49 | +89:15:50 | – | 3.972013 | HERMES | 58239–60382 | 290 |
Notes. CCF profiles data for the four stars. The consecutive columns provide the star name, the coordinates, the intensity-averaged Gaia DR3 G-band magnitude, the VELOCE period, the instrument, the BJD range, and the number of observations. S/N averages for CCFs were computed using a 2σ-clipping and 10 iterations. Average S/N for 1D spectra are estimated near the 60th order for Coralie and HERMES.
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