Altair vs Wega
| Eigenschaft |
Altair
|
Wega
|
| Bezeichnung |
53Alp Aql |
3Alp Lyr |
| Sternbild |
Aquila |
Lyra |
| Spektralklasse |
Class A — A-type (White) |
Class A — A-type (White) |
| Scheinbare Helligkeit |
+0.76 |
+0.03 |
| Absolute Helligkeit |
2,21
|
0,60
|
| Entfernung |
16.7 ly |
25.0 ly |
| Masse |
N/A
|
N/A
|
| Radius |
N/A
|
N/A
|
| Temperatur |
N/A
|
N/A
|
| Leuchtkraft |
N/A
|
N/A
|
Wesentliche Unterschiede
- ◆ Both are A-type stars forming part of the Summer Triangle asterism along with Deneb.
- ◆ Vega is at 25 light-years; Altair is even closer at 16.7 light-years.
- ◆ Altair rotates extremely rapidly (once every 10.4 hours), making it noticeably oblate; Vega also rotates fast but less extremely.
- ◆ Vega is about four times more luminous than Altair.
- ◆ Vega has a prominent debris disk suggesting possible planetary formation; Altair's disk is less prominent.