| Identification Data |
| Common Name | Regulus |
| Constellation | Leo |
| Star Name | 32alp Leo |
| Skymap Number | 10080053 |
| Henry Draper (HD) Number | 87901 |
| Harvard Revised (HR) Number | 3982 |
| SAO Number | 98967 |
| Durchmusterung (DM) Number | BD+12 2149 |
Washington Double Stars (WDS) Number
| 10084+1158
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 127140 |
| Right Ascension (RA) J2000 | 10h 8m 22.310s |
| Declination (Dec) J2000 | +11° 58' 1.945" |
| Position Uncertainty | 0.0078s |
| Proper Motion in RA (J2000)/cos(Dec) | -0.01700 |
| Proper Motion in Dec (J2000) | +0.004966 |
| Radial Velocity | +005.9km s-1 |
| Trigonometric Parallax | +0.04209s |
| Trigonometric Parallax Uncertainty | 0.00079s |
| GCI Unit Vector in X (J2000) | -0.864502 |
| GCI Unit Vector in Y (J2000) | 0.457866 |
| GCI Unit Vector in Z (J2000) | 0.207352 |
| Galactic Longitude | 226.44° |
Galactic Latitude
| 48.94°
|
| Observational Data |
| Observed Visual Magnitude (V) | 1.41 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.007 |
| Observed B Magnitude | 1.37 |
| Observed B-V Colour | -0.036 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.011 |
| Observed U Magnitude | |
| Observed U-B Colour | |
| Observed U Magnitude or (U-B) Magnitude Uncertainty | |
| Observed Photovisual Magnitude | 1.3 |
| Observed Photographic Magnitude | |
| Morgan Keenan (MK) Spectral Type | B7V |
| One-Dimensional Spectral Class | B8 |
| Position Angle | 307 |
| Year of Observation | 1960. AD |
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