| Identification Data | 
| Common Name |  | 
| Constellation | Boötes | 
| Star Name | 1    Boo | 
| Skymap Number | 13400111 | 
| Henry Draper (HD) Number | 119055 | 
| Harvard Revised (HR) Number | 5144 | 
| SAO Number | 82942 | 
| Durchmusterung (DM) Number | BD+20 2858 | 
Washington Double Stars (WDS) Number
  | 13407+1957
  | 
| Positional Data | 
| Position and Proper Motion (PPM) Number | 129992 | 
| Right Ascension (RA) J2000 | 13h 40m 40.469s | 
| Declination (Dec) J2000 | +19° 57' 20.590" | 
| Position Uncertainty | 0.0094s | 
| Proper Motion in RA (J2000)/cos(Dec) | -0.00330 | 
| Proper Motion in Dec (J2000) | +0.023267 | 
| Radial Velocity | -026.0km s-1 | 
| Trigonometric Parallax | +0.01077s | 
| Trigonometric Parallax Uncertainty | 0.00090s | 
| GCI Unit Vector in X (J2000) | -0.850717 | 
| GCI Unit Vector in Y (J2000) | -0.399748 | 
| GCI Unit Vector in Z (J2000) | 0.341294 | 
| Galactic Longitude | 3.08° | 
Galactic Latitude
  | 76.64°
  | 
| Observational Data | 
| Observed Visual Magnitude (V) | 5.76 | 
| Derived Visual Magnitude |  | 
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.003 | 
| Observed B Magnitude | 5.78 | 
| Observed B-V Colour | +0.020 | 
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.004 | 
| Observed U Magnitude |  | 
| Observed U-B Colour |  | 
| Observed U Magnitude or (U-B) Magnitude Uncertainty |  | 
| Observed Photovisual Magnitude | 5.7 | 
| Observed Photographic Magnitude | 5.7 | 
| Morgan Keenan (MK) Spectral Type | A1V | 
| One-Dimensional Spectral Class | A2 | 
| Position Angle | 136 | 
| Year of Observation | 1976. AD |