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Research and list editing of visual double stars
| 20423+4549 - BKO158AF | Constellation : Cyg | AD 20h42min20.31sec / Dec +45°49min24.5sec | |||||
| Components | Primary | Secondary | WDS data | WDS Notes | |||
| Magnitudes | 7.66 | 12.20 | Negleted : non | NNotes found in WDSNOT MEMO of WDS. | |||
| Proper Motion RA | -056 | -009 | Precise coordinates : oui | ||||
| Mouvement propre Dec | -189 | +002 | Spectre : G2V | ||||
| Nb of observations : 11 | Angle | Separation | Cross references (wds id) *I* | *P* | ||||
| First measure : 1998 | 146 | 42.900 | |||||
| Last measure : 2015 | 143.10 | 40.993 | |||||
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