| Identification Data |
| Common Name | |
| Constellation | Lyra |
| Star Name | 21the Lyr |
| Skymap Number | 19160080 |
| Henry Draper (HD) Number | 180809 |
| Harvard Revised (HR) Number | 7314 |
| SAO Number | 68065 |
| Durchmusterung (DM) Number | BD+37 3398 |
Washington Double Stars (WDS) Number
| 19164+3808
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 82611 |
| Right Ascension (RA) J2000 | 19h 16m 22.095s |
| Declination (Dec) J2000 | +38° 8' 1.431" |
| Position Uncertainty | 0.0056s |
| Proper Motion in RA (J2000)/cos(Dec) | -0.00004 |
| Proper Motion in Dec (J2000) | +0.001266 |
| Radial Velocity | -030.9km s-1 |
| Trigonometric Parallax | +0.00424s |
| Trigonometric Parallax Uncertainty | 0.00049s |
| GCI Unit Vector in X (J2000) | 0.257277 |
| GCI Unit Vector in Y (J2000) | -0.743306 |
| GCI Unit Vector in Z (J2000) | 0.617499 |
| Galactic Longitude | 69.90° |
Galactic Latitude
| 11.86°
|
| Observational Data |
| Observed Visual Magnitude (V) | 4.34 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.002 |
| Observed B Magnitude | 5.59 |
| Observed B-V Colour | +1.252 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.003 |
| Observed U Magnitude | |
| Observed U-B Colour | |
| Observed U Magnitude or (U-B) Magnitude Uncertainty | |
| Observed Photovisual Magnitude | 4.5 |
| Observed Photographic Magnitude | |
| Morgan Keenan (MK) Spectral Type | K0II |
| One-Dimensional Spectral Class | K0 |
| Position Angle | 74 |
| Year of Observation | 1963. AD |
