| Identification Data |
| Common Name | |
| Constellation | Orion |
| Star Name | 55 Ori |
| Skymap Number | 5510078 |
| Henry Draper (HD) Number | 39291 |
| Harvard Revised (HR) Number | 2031 |
| SAO Number | 132591 |
| Durchmusterung (DM) Number | SD-07 1187 |
Washington Double Stars (WDS) Number
|
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 188526 |
| Right Ascension (RA) J2000 | 5h 51m 21.983s |
| Declination (Dec) J2000 | -7° 31' 4.811" |
| Position Uncertainty | 0.0078s |
| Proper Motion in RA (J2000)/cos(Dec) | +0.00005 |
| Proper Motion in Dec (J2000) | -0.000266 |
| Radial Velocity | +020.0km s-1 |
| Trigonometric Parallax | +0.00194s |
| Trigonometric Parallax Uncertainty | 0.00079s |
| GCI Unit Vector in X (J2000) | 0.037339 |
| GCI Unit Vector in Y (J2000) | 0.990700 |
| GCI Unit Vector in Z (J2000) | -0.130838 |
| Galactic Longitude | 212.89° |
Galactic Latitude
| -16.76°
|
| Observational Data |
| Observed Visual Magnitude (V) | 5.35 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.004 |
| Observed B Magnitude | 5.15 |
| Observed B-V Colour | -0.196 |
| 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 | 5.3 |
| Observed Photographic Magnitude | 5.2 |
| Morgan Keenan (MK) Spectral Type | B2IV-V |
| One-Dimensional Spectral Class | B3 |
| Position Angle | |
| Year of Observation | AD |
