| Identification Data | 
| Common Name |  | 
| Constellation | Pegasus | 
| Star Name | 66    Peg | 
| Skymap Number | 23230013 | 
| Henry Draper (HD) Number | 220363 | 
| Harvard Revised (HR) Number | 8893 | 
| SAO Number | 108580 | 
| Durchmusterung (DM) Number | BD+11 4993 | 
Washington Double Stars (WDS) Number
  | 
  | 
| Positional Data | 
| Position and Proper Motion (PPM) Number | 142460 | 
| Right Ascension (RA) J2000 | 23h 23m 4.568s | 
| Declination (Dec) J2000 | +12° 18' 50.077" | 
| Position Uncertainty | 0.0090s | 
| Proper Motion in RA (J2000)/cos(Dec) | +0.00130 | 
| Proper Motion in Dec (J2000) | -0.017266 | 
| Radial Velocity | -003.5km s-1 | 
| Trigonometric Parallax | +0.00988s | 
| Trigonometric Parallax Uncertainty | 0.00082s | 
| GCI Unit Vector in X (J2000) | 0.964341 | 
| GCI Unit Vector in Y (J2000) | -0.156724 | 
| GCI Unit Vector in Z (J2000) | 0.213268 | 
| Galactic Longitude | 91.57° | 
Galactic Latitude
  | -45.11°
  | 
| Observational Data | 
| Observed Visual Magnitude (V) | 5.08 | 
| Derived Visual Magnitude |  | 
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.004 | 
| Observed B Magnitude | 6.39 | 
| Observed B-V Colour | +1.314 | 
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.005 | 
| Observed U Magnitude |  | 
| Observed U-B Colour |  | 
| Observed U Magnitude or (U-B) Magnitude Uncertainty |  | 
| Observed Photovisual Magnitude | 5.3 | 
| Observed Photographic Magnitude | 6.3 | 
| Morgan Keenan (MK) Spectral Type | K3III | 
| One-Dimensional Spectral Class | K0 | 
| Position Angle |  | 
| Year of Observation |  AD |