Table 3
Results of observed polarised standard stars.
| Date of | P ± σ P | θ ± σ θ |
| Obs. | (%) | (°) |
|
|
||
| HD 236633 | ||
| †Standard values: 5.38 ± 0.02%, 93.04 ± 0.15° | ||
| 01 Nov. 2007 | 5.5 ± 0.1 | 92 ± 1 |
| 04 Nov. 2007 | 5.6 ± 0.1 | 93 ± 1 |
| 22 Nov. 2011 | 4.8 ± 0.2 | 92 ± 1 |
| 26 Nov. 2011 | 5.3 ± 0.1 | 92 ± 1 |
| 20 Dec. 2011 | 5.3 ± 0.2 | 93 ± 2 |
| 24 Dec. 2011 | 5.7 ± 0.2 | 93 ± 1 |
|
|
||
| HD 236954 | ||
| ‡Standard values: 6.16 ± 0.17%, 110.0 ± 0.8° | ||
| 20 Dec. 2011 | 6.0 ± 0.1 | 111 ± 2 |
| 21 Dec. 2011 | 6.2 ± 0.4 | 111 ± 2 |
|
|
||
| BD+59°389 | ||
| †Standard values: 6.43 ± 0.02%, 98.14 ± 0.10° | ||
| 03 Nov. 2007 | 6.6 ± 0.1 | 98 ± 1 |
| 04 Nov. 2007 | 6.9 ± 0.1 | 98 ± 1 |
| 14 Nov. 2010 | 6.1 ± 0.1 | 97 ± 1 |
| 26 Nov. 2011 | 7.0 ± 0.2 | 98 ± 1 |
| 20 Dec. 2011 | 6.2 ± 0.1 | 98 ± 1 |
| 24 Dec. 2011 | 6.4 ± 0.1 | 98 ± 1 |
|
|
||
| HD 25443 | ||
| †Standard values: 4.73 ± 0.05%, 133.65 ± 0.28° | ||
| 14 Nov. 2010 | 4.9 ± 0.1 | 133 ± 2 |
| 27 Feb. 2011 | 4.9 ± 0.1 | 133 ± 1 |
|
|
||
| BD+64°3106 | ||
| †Standard values: 5.69 ± 0.04%, 96.63 ± 0.18° | ||
| 01 Nov. 2007 | 5.6 ± 0.1 | 96 ± 1 |
| 04 Nov. 2007 | 5.3 ± 0.1 | 96 ± 1 |
|
|
||
| HD 19820 | ||
| †Standard values: 4.53 ± 0.02%, 114.46 ± 0.16° | ||
| 26 Jan. 2011 | 4.5 ± 0.1 | 114 ± 1 |
|
|
||
| HD 245310 | ||
| †Standard values: 4.55 ± 0.06%, 145.97 ± 0.40° | ||
| 27 Feb. 2011 | 4.4 ± 0.1 | 145 ± 1 |
|
|
||
| HD 154445 | ||
| †Standard values: 3.68 ± 0.07%, 88.91 ± 0.58° | ||
| 16 May 2012 | 3.7 ± 0.1 | 98 ± 1 |
| 19 May 2012 | 3.7 ± 0.1 | 98 ± 1 |
| 20 May 2012 | 3.8 ± 0.1 | 99 ± 1 |
|
|
||
| HD 155197 | ||
| †Standard values: 4.27 ± 0.03%, 102.88 ± 0.18° | ||
| 16 May 2012 | 4.3 ± 0.1 | 110 ± 1 |
| 19 May 2012 | 4.3 ± 0.1 | 111 ± 1 |
| 20 May 2012 | 4.3 ± 0.1 | 111 ± 1 |
| ∗15 May 2013 | 4.2 ± 0.2 | 109 ± 1 |
|
|
||
| HD 161056 | ||
| †Standard values: 4.01± 0.03%, 67.33 ± 0.23° | ||
| ∗15 May 2013 | 3.8 ± 0.1 | 75 ± 1 |
Notes.
In Rc band from Schmidt et al. (1992).
R band values calculated using the Serkowski’s law and V band results obtained from the Heiles (2000, original reference Hiltner 1956.
Data for target stars and standards stars on 15 May 2013 was taken in Johnson Rkc band (Schmidt et al. 1992).
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