| Identification Data |
| Common Name | |
| Constellation | Leo |
| Star Name | 45 Leo |
| Skymap Number | 10270121 |
| Henry Draper (HD) Number | 90569 |
| Harvard Revised (HR) Number | 4101 |
| SAO Number | 99136 |
| Durchmusterung (DM) Number | BD+10 2152 |
Washington Double Stars (WDS) Number
| 10276+0946
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 156855 |
| Right Ascension (RA) J2000 | 10h 27m 38.990s |
| Declination (Dec) J2000 | +9° 45' 44.626" |
| Position Uncertainty | 0.0091s |
| Proper Motion in RA (J2000)/cos(Dec) | +0.00053 |
| Proper Motion in Dec (J2000) | -0.006366 |
| Radial Velocity | -008.0km s-1 |
| Trigonometric Parallax | +0.00847s |
| Trigonometric Parallax Uncertainty | 0.00083s |
| GCI Unit Vector in X (J2000) | -0.906586 |
| GCI Unit Vector in Y (J2000) | 0.386459 |
| GCI Unit Vector in Z (J2000) | 0.169563 |
| Galactic Longitude | 233.15° |
Galactic Latitude
| 51.94°
|
| Observational Data |
| Observed Visual Magnitude (V) | 6.01 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.005 |
| Observed B Magnitude | 5.97 |
| Observed B-V Colour | -0.036 |
| 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 | 5.9 |
| Observed Photographic Magnitude | 5.8 |
| Morgan Keenan (MK) Spectral Type | A0pSiCr: |
| One-Dimensional Spectral Class | A0 |
| Position Angle | 132 |
| Year of Observation | 1924. AD |
