Open Access
Table 2.
Details of the observations of HD 143811.
| Date (UT) | Instrument | Int. time | Seeing | τ0 | ΔPA (°) |
|---|---|---|---|---|---|
| (min) | (arcsec) | (ms) | |||
| 2016/04/30 | GPI | 43.7 | 2.24 | N.A. | 174.4 |
| 2019/08/10 | GPI | 47.7 | N.A. | N.A. | 174.8 |
| 2025/07/24 | SPHERE | 90 | 0.33 | 4.8 | 52.1 |
Notes. ΔPA: total FoV rotation. Coherence time and seeing are averaged over the exposures. N.A.: values that could not be found.
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