Cygnus X-1 vs Vega
| Property | Cygnus X-1 | Vega |
|---|---|---|
| Designation | N/A | 3Alp Lyr |
| Constellation | Cygnus | Lyra |
| Spectral Class | Class B — B-type (Blue-White) | Class A — A-type (White) |
| Apparent Magnitude | +8.84 | +0.03 |
| Absolute Magnitude | -0.03 | 0.60 |
| Distance | 1,941 ly | 25.0 ly |
| Mass | N/A | N/A |
| Radius | N/A | N/A |
| Temperature | N/A | N/A |
| Luminosity | N/A | N/A |