Quadruple System WDS 21591+6400
HIP 108519
• HD 209178
• BD+63_1794, ADS_15227
MSC Grade
4
Confirmed hierarchy, periods known or estimated
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 | 329.765539 | 63.998722 | -2.0 | -5.0 | 1.13 | - | 8.69 | B8 | |
| C | 329.766325 | 63.998300 | -0.4 | -1.2 | 1.13 | - | 11.03 | - | |
| D | 329.768454 | 63.996768 | -3.2 | -4.3 | 0.96 | -32.9 | 12.67 | - | |