فم الحوت vs Vega
| الخاصية |
فم الحوت
|
Vega
|
| التسمية |
24Alp PsA |
3Alp Lyr |
| الكوكبة |
N/A |
Lyra |
| النوع الطيفي |
Class A — A-type (White) |
Class A — A-type (White) |
| القدر الظاهري |
+1.17 |
+0.03 |
| القدر المطلق |
1,74
|
0,60
|
| المسافة |
25.1 ly |
25.0 ly |
| الكتلة |
N/A
|
N/A
|
| نصف القطر |
N/A
|
N/A
|
| درجة الحرارة |
N/A
|
N/A
|
| السطوع |
N/A
|
N/A
|
الاختلافات الرئيسية
- ◆ 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.