目前位置
| 屬性 | 數值 |
|---|---|
| Right Ascension (J2000) | 19h50m47s |
| Declination (J2000) | +08°52'12" |
| Altitude | 56.40° |
| Azimuth | 206.83° |
| Hour Angle | 00h59m52s |
| Constellation | Aquila |
| Visibility | bright |
物理特性
| 屬性 | 數值 |
|---|---|
| Visual Magnitude | 0.76 |
| Spectral Class | A7V |
| Color Index (B-V) | 0.22 |
| Distance | 16.7 light-years |
| Parallax | 194.44 mas |
| Proper Motion (RA) | 536.82 mas/yr |
| Proper Motion (Dec) | 385.54 mas/yr |
| Radial Velocity | -26.1 km/s |
星表編號
| 目錄 | 編號 |
|---|---|
| Hipparcos (HIP) | 97649 |
| Bright Star Catalogue (HR) | 7557 |
| Henry Draper (HD) | 187642 |
| SAO | 125122 |
| Bayer Designation | α Aql |
| Flamsteed Designation | 53 Aql |
升起、落下與過中天
| 事件 | 時間 / 數值 |
|---|---|
| Rise Time | 00:09 |
| Transit Time | 06:41 (altitude: 59.0°) |
| Set Time | 13:14 |