| Identification Data | 
| Common Name |  | 
| Constellation | Auriga | 
| Star Name | 66    Aur | 
| Skymap Number | 7240038 | 
| Henry Draper (HD) Number | 57669 | 
| Harvard Revised (HR) Number | 2805 | 
| SAO Number | 41738 | 
| Durchmusterung (DM) Number | BD+40 1852 | 
Washington Double Stars (WDS) Number
  | 
  | 
| Positional Data | 
| Position and Proper Motion (PPM) Number | 49822 | 
| Right Ascension (RA) J2000 | 7h 24m 8.468s | 
| Declination (Dec) J2000 | +40° 40' 20.602" | 
| Position Uncertainty | 0.0129s | 
| Proper Motion in RA (J2000)/cos(Dec) | -0.00029 | 
| Proper Motion in Dec (J2000) | -0.021166 | 
| Radial Velocity | +021.2km s-1 | 
| Trigonometric Parallax | +0.00448s | 
| Trigonometric Parallax Uncertainty | 0.00096s | 
| GCI Unit Vector in X (J2000) | -0.272240 | 
| GCI Unit Vector in Y (J2000) | 0.707905 | 
| GCI Unit Vector in Z (J2000) | 0.651733 | 
| Galactic Longitude | 177.67° | 
Galactic Latitude
  | 23.15°
  | 
| Observational Data | 
| Observed Visual Magnitude (V) | 5.19 | 
| Derived Visual Magnitude |  | 
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.004 | 
| Observed B Magnitude | 6.44 | 
| Observed B-V Colour | +1.249 | 
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.006 | 
| Observed U Magnitude |  | 
| Observed U-B Colour |  | 
| Observed U Magnitude or (U-B) Magnitude Uncertainty |  | 
| Observed Photovisual Magnitude | 5.3 | 
| Observed Photographic Magnitude |  | 
| Morgan Keenan (MK) Spectral Type | K1IIIaFe1 | 
| One-Dimensional Spectral Class | K0 | 
| Position Angle |  | 
| Year of Observation |  AD |