Current Position
| Property | Value |
|---|---|
| Right Ascension (J2000) | 18h36m56s |
| Declination (J2000) | +38°47'06" |
| Altitude | -7.61° |
| Azimuth | 339.39° |
| Hour Angle | 10h14m30s |
| Constellation | Lyra |
| Visibility | below_horizon |
Physical Properties
| Property | Value |
|---|---|
| Visual Magnitude | 0.03 |
| Spectral Class | A0V |
| Color Index (B-V) | 0.00 |
| Distance | 25.0 light-years |
| Parallax | 128.93 mas |
| Proper Motion (RA) | 201.02 mas/yr |
| Proper Motion (Dec) | 287.46 mas/yr |
| Radial Velocity | -13.9 km/s |
Catalog Designations
| แคตตาล็อก | Designation |
|---|---|
| Hipparcos (HIP) | 91262 |
| Bright Star Catalogue (HR) | 7001 |
| Henry Draper (HD) | 172167 |
| SAO | 67174 |
| Bayer Designation | α Lyr |
| Flamsteed Designation | 3 Lyr |
Rise, Set & Transit
| เหตุการณ์ท้องฟ้า | Time / Value |
|---|---|
| Rise Time | 14:29 |
| Transit Time | 23:22 (altitude: 88.9°) |
| Set Time | 08:18 |