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 |