Triple System WDS 21179+3454
HIP 105138
• HD 202904
• BD+34_4371, ADS_14831, HR_8146, *66ups_Cyg
MSC Grade
3
Confirmed hierarchy, some periods unknown
Components (Hover name or magnitude for more details)
| Position | Proper Motion | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| α deg |
δ deg |
μα mas/yr |
μδ mas/yr |
Parallax mas |
vrad km/s |
Magnitude V |
Spectral Type | External | |
| A | 319.479531 | 34.896880 | 12.6 | -1.5 | 5.01 | 4.0 | 4.43 | B2Vne | |
| B | 319.476212 | 34.893662 | 12.2 | -0.3 | 4.63 | -3.3 | 10.77 | F8III | |