Альтаир vs Вега
| Свойство | Альтаир | Вега |
|---|---|---|
| Обозначение | 53Alp Aql | 3Alp Lyr |
| Созвездие | Aquila | Lyra |
| Спектральный класс | Class A — A-type (White) | Class A — A-type (White) |
| Видимая звёздная величина | +0.76 | +0.03 |
| Абсолютная звёздная величина | 2,21 | 0,60 |
| Расстояние | 16.7 ly | 25.0 ly |
| Масса | N/A | N/A |
| Радиус | N/A | N/A |
| Температура | N/A | N/A |
| Светимость | N/A | N/A |
Ключевые различия
- ◆ 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.