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Table 2
Relative astrometric position of the companion of η Aql, corrected for atmospheric refraction.
| Filter | MJD | Δα | Δδ |
| (mas) | (mas) | ||
|
|
|||
| NB1.64 | 56 128.2986 | 654.70 ± 1.16 | −32.37 ± 1.18 |
| NB2.17 | 56 128.3012 | 652.93 ± 1.24 | −30.96 ± 1.76 |
|
|
|||
| Avg. | 56 128.2999 | 653.87 ± 0.85 | −31.93 ± 0.98 |
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