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Table 2
Polarization measurements and the reference values of highly polarized standard stars.
| Observation date | Star | P ± σP (%) | θobs ± σθ (º) | P ± σP (%) | θ ± σθ (º) | Angle offset |
|---|---|---|---|---|---|---|
| (our work) | (Schmidt et al. 1992) | (º) | ||||
| Oct. 19, 2022 | ||||||
| Hiltner 960 | 5.53 ± 0.14 | −25.16 ± 0.90 | 5.210 ± 0.029 | 54.54 ± 0.16 | 79.70 | |
| HD 236954 | 6.13 ± 0.15 | 30.78 ± 0.84 | 5.790 ± 0.099 | −68.80 ± 0.49 | 80.42 | |
| BD +64106 | 5.35 ± 0.07 | 18.18 ± 0.37 | 5.150 ± 0.098 | −83.26 ± 0.54 | 78.56 | |
| HD 19820 | 4.32 ± 0.14 | 36.38 ± 0.76 | 4.562 ± 0.025 | −65.54± 0.16 | 78.08 | |
| Oct. 21, 2022 | ||||||
| BD +64106 | 5.43 ± 0.16 | 17.67 ± 0.62 | 5.150 ± 0.098 | −83.26 ± 0.54 | 79.07 | |
| HD 19820 | 4.46 ± 0.08 | 35.25 ± 0.46 | 4.562 ± 0.025 | −65.54± 0.16 | 79.21 | |
| HD 25443 | 4.74 ± 0.03 | 56.45 ± 0.33 | 4.734 ± 0.045 | −46.35 ± 0.28 | 77.20 | |
| HD 7927 | 3.22 ± 0.04 | 11.34± 0.66 | 3.026 ± 0.037 | −89.16 ± 0.35 | 79.50 | |
| HD 236633 | 5.58 ± 0.12 | 12.77 ± 0.62 | 5.576 ± 0.028 | −85.96 ± 0.15 | 80.27 | |
| Oct. 22, 2022 | ||||||
| HD 19820 | 4.58 ± 0.15 | 36.60 ± 1.00 | 4.562 ± 0.025 | −65.54± 0.16 | 80.86 | |
| BD+59 389 | 6.52 ± 0.15 | 19.35 ± 0.19 | 6.430 ± 0.022 | −81.86 ± 0.10 | 78.79 | |
| Oct. 23, 2022 | ||||||
| BD +64106 | 5.55 ± 0.38 | 19.17 ± 0.37 | 5.150 ± 0.098 | −83.26 ± 0.54 | 77.57 | |
| HD 19820 | 4.56 ± 0.11 | 36.28 ± 0.99 | 4.562 ± 0.025 | −65.54± 0.16 | 78.18 | |
| HD25443 | 4.84 ± 0.2 | 57.20 ± 1.04 | 4.734 ± 0.045 | −46.35 ± 0.28 | 76.45 | |
| BD+59 389 | 6.58 ± 0.09 | 18.45 ± 0.50 | 6.430 ± 0.022 | −81.86 ± 0.10 | 79.69 | |
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