| Identification Data |
| Common Name | Meissa |
| Constellation | Orion |
| Star Name | 39lam Ori |
| Skymap Number | 5350029 |
| Henry Draper (HD) Number | 36861 |
| Harvard Revised (HR) Number | 1879 |
| SAO Number | 112921 |
| Durchmusterung (DM) Number | BD+09 879 |
Washington Double Stars (WDS) Number
| 05351+0956
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 149166 |
| Right Ascension (RA) J2000 | 5h 35m 8.277s |
| Declination (Dec) J2000 | +9° 56' 2.970" |
| Position Uncertainty | 0.0097s |
| Proper Motion in RA (J2000)/cos(Dec) | -0.00007 |
| Proper Motion in Dec (J2000) | -0.001967 |
| Radial Velocity | +032.9km s-1 |
| Trigonometric Parallax | +0.00309s |
| Trigonometric Parallax Uncertainty | 0.00078s |
| GCI Unit Vector in X (J2000) | 0.106645 |
| GCI Unit Vector in Y (J2000) | 0.979216 |
| GCI Unit Vector in Z (J2000) | 0.172516 |
| Galactic Longitude | 195.06° |
Galactic Latitude
| -11.99°
|
| Observational Data |
| Observed Visual Magnitude (V) | 3.39 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | |
| Observed B Magnitude | 3.23 |
| Observed B-V Colour | -0.160 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.025 |
| Observed U Magnitude | |
| Observed U-B Colour | |
| Observed U Magnitude or (U-B) Magnitude Uncertainty | |
| Observed Photovisual Magnitude | 3.7 |
| Observed Photographic Magnitude | 3.5 |
| Morgan Keenan (MK) Spectral Type | O8III((f)) |
| One-Dimensional Spectral Class | O8 |
| Position Angle | 43 |
| Year of Observation | 1987. AD |
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