Fomalhaut vs Vega
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| Property | Fomalhaut | Vega |
|---|---|---|
| Designation | 24Alp PsA | 3Alp Lyr |
| Constellation | N/A | Lyra |
| Spectral Class | Class A — A-type (White) | Class A — A-type (White) |
| Apparent Magnitude | +1.17 | +0.03 |
| Absolute Magnitude | 1.74 | 0.60 |
| Distance | 25.1 ly | 25.0 ly |
| Mass | N/A | N/A |
| Radius | N/A | N/A |
| Temperature | N/A | N/A |
| Luminosity | N/A | N/A |
Key Differences
- ◆ Both are young A-type benchmark stars with prominent debris disks, used to calibrate stellar and planetary evolution models.
- ◆ Fomalhaut is the southernmost autumn star easily seen from northern mid-latitudes.
- ◆ Vega is approximately 1.9 times more massive than Fomalhaut.
- ◆ Both have been candidate targets for direct imaging of orbiting companions.
- ◆ Fomalhaut is one of only 18 stars with disks resolved by Hubble; Vega's disk was first revealed by IRAS in 1983.