| Identification Data |
| Common Name | |
| Constellation | Orion |
| Star Name | 28eta Ori |
| Skymap Number | 5240078 |
| Henry Draper (HD) Number | 35411 |
| Harvard Revised (HR) Number | 1788 |
| SAO Number | 132071 |
| Durchmusterung (DM) Number | SD-02 1235 |
Washington Double Stars (WDS) Number
| 05245-0224
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 188024 |
| Right Ascension (RA) J2000 | 5h 24m 28.616s |
| Declination (Dec) J2000 | -2° 23' 49.726" |
| Position Uncertainty | 0.0107s |
| Proper Motion in RA (J2000)/cos(Dec) | -0.00004 |
| Proper Motion in Dec (J2000) | -0.003267 |
| Radial Velocity | +019.8km s-1 |
| Trigonometric Parallax | +0.00362s |
| Trigonometric Parallax Uncertainty | 0.00088s |
| GCI Unit Vector in X (J2000) | 0.154244 |
| GCI Unit Vector in Y (J2000) | 0.987147 |
| GCI Unit Vector in Z (J2000) | -0.041826 |
| Galactic Longitude | 204.87° |
Galactic Latitude
| -20.39°
|
| Observational Data |
| Observed Visual Magnitude (V) | 3.39 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.009 |
| Observed B Magnitude | 3.22 |
| Observed B-V Colour | -0.171 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.012 |
| Observed U Magnitude | |
| Observed U-B Colour | |
| Observed U Magnitude or (U-B) Magnitude Uncertainty | |
| Observed Photovisual Magnitude | 3.4 |
| Observed Photographic Magnitude | 3.2 |
| Morgan Keenan (MK) Spectral Type | B1V+B2e |
| One-Dimensional Spectral Class | B1 |
| Position Angle | 78 |
| Year of Observation | 1989. AD |
